81706080

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:102

約数の個数: 288

約数和(自身を含む): 297077760

約数和(自身を除く): 215371680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 19, 20, 24, 30, 31, 32, 34, 38, 40, 48, 51, 57, 60, 62, 68, 76, 80, 85, 93, 95, 96, 102, 114, 120, 124, 136, 152, 155, 160, 170, 186, 190, 204, 228, 240, 248, 255, 272, 285, 289, 304, 310, 323, 340, 372, 380, 408, 456, 465, 480, 496, 510, 527, 544, 570, 578, 589, 608, 620, 646, 680, 744, 760, 816, 867, 912, 930, 969, 992, 1020, 1054, 1140, 1156, 1178, 1240, 1292, 1360, 1445, 1488, 1520, 1581, 1615, 1632, 1734, 1767, 1824, 1860, 1938, 2040, 2108, 2280, 2312, 2356, 2480, 2584, 2635, 2720, 2890, 2945, 2976, 3040, 3162, 3230, 3468, 3534, 3720, 3876, 4080, 4216, 4335, 4560, 4624, 4712, 4845, 4960, 5168, 5270, 5491, 5780, 5890, 6324, 6460, 6936, 7068, 7440, 7752, 7905, 8160, 8432, 8670, 8835, 8959, 9120, 9248, 9424, 9690, 10013, 10336, 10540, 10982, 11560, 11780, 12648, 12920, 13872, 14136, 14880, 15504, 15810, 16473, 16864, 17340, 17670, 17918, 18848, 19380, 20026, 21080, 21964, 23120, 23560, 25296, 25840, 26877, 27455, 27744, 28272, 30039, 31008, 31620, 32946, 34680, 35340, 35836, 38760, 40052, 42160, 43928, 44795, 46240, 47120, 50065, 50592, 51680, 53754, 54910, 56544, 60078, 63240, 65892, 69360, 70680, 71672, 77520, 80104, 82365, 84320, 87856, 89590, 94240, 100130, 107508, 109820, 120156, 126480, 131784, 134385, 138720, 141360, 143344, 150195, 155040, 160208, 164730, 170221, 175712, 179180, 200260, 215016, 219640, 240312, 252960, 263568, 268770, 282720, 286688, 300390, 320416, 329460, 340442, 358360, 400520, 430032, 439280, 480624, 510663, 527136, 537540, 600780, 658920, 680884, 716720, 801040, 851105, 860064, 878560, 961248, 1021326, 1075080, 1201560, 1317840, 1361768, 1433440, 1602080, 1702210, 2042652, 2150160, 2403120, 2553315, 2635680, 2723536, 3404420, 4085304, 4300320, 4806240, 5106630, 5447072, 6808840, 8170608, 10213260, 13617680, 16341216, 20426520, 27235360, 40853040, 81706080]

約数ペア:

[(1, 81706080), (2, 40853040), (3, 27235360), (4, 20426520), (5, 16341216), (6, 13617680), (8, 10213260), (10, 8170608), (12, 6808840), (15, 5447072), (16, 5106630), (17, 4806240), (19, 4300320), (20, 4085304), (24, 3404420), (30, 2723536), (31, 2635680), (32, 2553315), (34, 2403120), (38, 2150160), (40, 2042652), (48, 1702210), (51, 1602080), (57, 1433440), (60, 1361768), (62, 1317840), (68, 1201560), (76, 1075080), (80, 1021326), (85, 961248), (93, 878560), (95, 860064), (96, 851105), (102, 801040), (114, 716720), (120, 680884), (124, 658920), (136, 600780), (152, 537540), (155, 527136), (160, 510663), (170, 480624), (186, 439280), (190, 430032), (204, 400520), (228, 358360), (240, 340442), (248, 329460), (255, 320416), (272, 300390), (285, 286688), (289, 282720), (304, 268770), (310, 263568), (323, 252960), (340, 240312), (372, 219640), (380, 215016), (408, 200260), (456, 179180), (465, 175712), (480, 170221), (496, 164730), (510, 160208), (527, 155040), (544, 150195), (570, 143344), (578, 141360), (589, 138720), (608, 134385), (620, 131784), (646, 126480), (680, 120156), (744, 109820), (760, 107508), (816, 100130), (867, 94240), (912, 89590), (930, 87856), (969, 84320), (992, 82365), (1020, 80104), (1054, 77520), (1140, 71672), (1156, 70680), (1178, 69360), (1240, 65892), (1292, 63240), (1360, 60078), (1445, 56544), (1488, 54910), (1520, 53754), (1581, 51680), (1615, 50592), (1632, 50065), (1734, 47120), (1767, 46240), (1824, 44795), (1860, 43928), (1938, 42160), (2040, 40052), (2108, 38760), (2280, 35836), (2312, 35340), (2356, 34680), (2480, 32946), (2584, 31620), (2635, 31008), (2720, 30039), (2890, 28272), (2945, 27744), (2976, 27455), (3040, 26877), (3162, 25840), (3230, 25296), (3468, 23560), (3534, 23120), (3720, 21964), (3876, 21080), (4080, 20026), (4216, 19380), (4335, 18848), (4560, 17918), (4624, 17670), (4712, 17340), (4845, 16864), (4960, 16473), (5168, 15810), (5270, 15504), (5491, 14880), (5780, 14136), (5890, 13872), (6324, 12920), (6460, 12648), (6936, 11780), (7068, 11560), (7440, 10982), (7752, 10540), (7905, 10336), (8160, 10013), (8432, 9690), (8670, 9424), (8835, 9248), (8959, 9120)]