18779220

素因数分解:

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

素因数の和:87

約数の個数: 162

約数和(自身を含む): 63863982

約数和(自身を除く): 45084762

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 19, 20, 30, 34, 36, 38, 45, 51, 57, 60, 68, 76, 85, 90, 95, 102, 114, 153, 170, 171, 180, 190, 204, 228, 255, 285, 289, 306, 323, 340, 342, 361, 380, 510, 570, 578, 612, 646, 684, 722, 765, 855, 867, 969, 1020, 1083, 1140, 1156, 1292, 1444, 1445, 1530, 1615, 1710, 1734, 1805, 1938, 2166, 2601, 2890, 2907, 3060, 3230, 3249, 3420, 3468, 3610, 3876, 4332, 4335, 4845, 5202, 5415, 5491, 5780, 5814, 6137, 6460, 6498, 7220, 8670, 9690, 10404, 10830, 10982, 11628, 12274, 12996, 13005, 14535, 16245, 16473, 17340, 18411, 19380, 21660, 21964, 24548, 26010, 27455, 29070, 30685, 32490, 32946, 36822, 49419, 52020, 54910, 55233, 58140, 61370, 64980, 65892, 73644, 82365, 92055, 98838, 104329, 109820, 110466, 122740, 164730, 184110, 197676, 208658, 220932, 247095, 276165, 312987, 329460, 368220, 417316, 494190, 521645, 552330, 625974, 938961, 988380, 1043290, 1104660, 1251948, 1564935, 1877922, 2086580, 3129870, 3755844, 4694805, 6259740, 9389610, 18779220]

約数ペア:

[(1, 18779220), (2, 9389610), (3, 6259740), (4, 4694805), (5, 3755844), (6, 3129870), (9, 2086580), (10, 1877922), (12, 1564935), (15, 1251948), (17, 1104660), (18, 1043290), (19, 988380), (20, 938961), (30, 625974), (34, 552330), (36, 521645), (38, 494190), (45, 417316), (51, 368220), (57, 329460), (60, 312987), (68, 276165), (76, 247095), (85, 220932), (90, 208658), (95, 197676), (102, 184110), (114, 164730), (153, 122740), (170, 110466), (171, 109820), (180, 104329), (190, 98838), (204, 92055), (228, 82365), (255, 73644), (285, 65892), (289, 64980), (306, 61370), (323, 58140), (340, 55233), (342, 54910), (361, 52020), (380, 49419), (510, 36822), (570, 32946), (578, 32490), (612, 30685), (646, 29070), (684, 27455), (722, 26010), (765, 24548), (855, 21964), (867, 21660), (969, 19380), (1020, 18411), (1083, 17340), (1140, 16473), (1156, 16245), (1292, 14535), (1444, 13005), (1445, 12996), (1530, 12274), (1615, 11628), (1710, 10982), (1734, 10830), (1805, 10404), (1938, 9690), (2166, 8670), (2601, 7220), (2890, 6498), (2907, 6460), (3060, 6137), (3230, 5814), (3249, 5780), (3420, 5491), (3468, 5415), (3610, 5202), (3876, 4845), (4332, 4335)]