638493480

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{17}}^3\times {\mathrm{19}}^2$

素因数の和:106

約数の個数: 288

約数和(自身を含む): 2326919400

約数和(自身を除く): 1688425920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 17, 18, 19, 20, 24, 30, 34, 36, 38, 40, 45, 51, 57, 60, 68, 72, 76, 85, 90, 95, 102, 114, 120, 136, 152, 153, 170, 171, 180, 190, 204, 228, 255, 285, 289, 306, 323, 340, 342, 360, 361, 380, 408, 456, 510, 570, 578, 612, 646, 680, 684, 722, 760, 765, 855, 867, 969, 1020, 1083, 1140, 1156, 1224, 1292, 1368, 1444, 1445, 1530, 1615, 1710, 1734, 1805, 1938, 2040, 2166, 2280, 2312, 2584, 2601, 2888, 2890, 2907, 3060, 3230, 3249, 3420, 3468, 3610, 3876, 4332, 4335, 4845, 4913, 5202, 5415, 5491, 5780, 5814, 6120, 6137, 6460, 6498, 6840, 6936, 7220, 7752, 8664, 8670, 9690, 9826, 10404, 10830, 10982, 11560, 11628, 12274, 12920, 12996, 13005, 14440, 14535, 14739, 16245, 16473, 17340, 18411, 19380, 19652, 20808, 21660, 21964, 23256, 24548, 24565, 25992, 26010, 27455, 29070, 29478, 30685, 32490, 32946, 34680, 36822, 38760, 39304, 43320, 43928, 44217, 49096, 49130, 49419, 52020, 54910, 55233, 58140, 58956, 61370, 64980, 65892, 73644, 73695, 82365, 88434, 92055, 93347, 98260, 98838, 104040, 104329, 109820, 110466, 116280, 117912, 122740, 129960, 131784, 147288, 147390, 164730, 176868, 184110, 186694, 196520, 197676, 208658, 219640, 220932, 221085, 245480, 247095, 276165, 280041, 294780, 312987, 329460, 353736, 368220, 373388, 395352, 417316, 441864, 442170, 466735, 494190, 521645, 552330, 560082, 589560, 625974, 658920, 736440, 746776, 834632, 840123, 884340, 933470, 938961, 988380, 1043290, 1104660, 1120164, 1251948, 1400205, 1564935, 1680246, 1768680, 1773593, 1866940, 1877922, 1976760, 2086580, 2209320, 2240328, 2503896, 2800410, 3129870, 3360492, 3547186, 3733880, 3755844, 4173160, 4200615, 4694805, 5320779, 5600820, 6259740, 6720984, 7094372, 7511688, 8401230, 8867965, 9389610, 10641558, 11201640, 12519480, 14188744, 15962337, 16802460, 17735930, 18779220, 21283116, 26603895, 31924674, 33604920, 35471860, 37558440, 42566232, 53207790, 63849348, 70943720, 79811685, 106415580, 127698696, 159623370, 212831160, 319246740, 638493480]

約数ペア:

[(1, 638493480), (2, 319246740), (3, 212831160), (4, 159623370), (5, 127698696), (6, 106415580), (8, 79811685), (9, 70943720), (10, 63849348), (12, 53207790), (15, 42566232), (17, 37558440), (18, 35471860), (19, 33604920), (20, 31924674), (24, 26603895), (30, 21283116), (34, 18779220), (36, 17735930), (38, 16802460), (40, 15962337), (45, 14188744), (51, 12519480), (57, 11201640), (60, 10641558), (68, 9389610), (72, 8867965), (76, 8401230), (85, 7511688), (90, 7094372), (95, 6720984), (102, 6259740), (114, 5600820), (120, 5320779), (136, 4694805), (152, 4200615), (153, 4173160), (170, 3755844), (171, 3733880), (180, 3547186), (190, 3360492), (204, 3129870), (228, 2800410), (255, 2503896), (285, 2240328), (289, 2209320), (306, 2086580), (323, 1976760), (340, 1877922), (342, 1866940), (360, 1773593), (361, 1768680), (380, 1680246), (408, 1564935), (456, 1400205), (510, 1251948), (570, 1120164), (578, 1104660), (612, 1043290), (646, 988380), (680, 938961), (684, 933470), (722, 884340), (760, 840123), (765, 834632), (855, 746776), (867, 736440), (969, 658920), (1020, 625974), (1083, 589560), (1140, 560082), (1156, 552330), (1224, 521645), (1292, 494190), (1368, 466735), (1444, 442170), (1445, 441864), (1530, 417316), (1615, 395352), (1710, 373388), (1734, 368220), (1805, 353736), (1938, 329460), (2040, 312987), (2166, 294780), (2280, 280041), (2312, 276165), (2584, 247095), (2601, 245480), (2888, 221085), (2890, 220932), (2907, 219640), (3060, 208658), (3230, 197676), (3249, 196520), (3420, 186694), (3468, 184110), (3610, 176868), (3876, 164730), (4332, 147390), (4335, 147288), (4845, 131784), (4913, 129960), (5202, 122740), (5415, 117912), (5491, 116280), (5780, 110466), (5814, 109820), (6120, 104329), (6137, 104040), (6460, 98838), (6498, 98260), (6840, 93347), (6936, 92055), (7220, 88434), (7752, 82365), (8664, 73695), (8670, 73644), (9690, 65892), (9826, 64980), (10404, 61370), (10830, 58956), (10982, 58140), (11560, 55233), (11628, 54910), (12274, 52020), (12920, 49419), (12996, 49130), (13005, 49096), (14440, 44217), (14535, 43928), (14739, 43320), (16245, 39304), (16473, 38760), (17340, 36822), (18411, 34680), (19380, 32946), (19652, 32490), (20808, 30685), (21660, 29478), (21964, 29070), (23256, 27455), (24548, 26010), (24565, 25992)]