80981880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1$

素因数の和:198

約数の個数: 256

約数和(自身を含む): 302330880

約数和(自身を除く): 221349000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 17, 20, 21, 24, 28, 30, 34, 35, 40, 42, 51, 53, 56, 60, 68, 70, 84, 85, 102, 105, 106, 107, 119, 120, 136, 140, 159, 168, 170, 204, 210, 212, 214, 238, 255, 265, 280, 318, 321, 340, 357, 371, 408, 420, 424, 428, 476, 510, 530, 535, 595, 636, 642, 680, 714, 742, 749, 795, 840, 856, 901, 952, 1020, 1060, 1070, 1113, 1190, 1272, 1284, 1428, 1484, 1498, 1590, 1605, 1785, 1802, 1819, 1855, 2040, 2120, 2140, 2226, 2247, 2380, 2568, 2703, 2856, 2968, 2996, 3180, 3210, 3570, 3604, 3638, 3710, 3745, 4280, 4452, 4494, 4505, 4760, 5406, 5457, 5565, 5671, 5992, 6307, 6360, 6420, 7140, 7208, 7276, 7420, 7490, 8904, 8988, 9010, 9095, 10812, 10914, 11130, 11235, 11342, 12614, 12733, 12840, 13515, 14280, 14552, 14840, 14980, 17013, 17976, 18020, 18190, 18921, 21624, 21828, 22260, 22470, 22684, 25228, 25466, 27030, 27285, 28355, 29960, 31535, 34026, 36040, 36380, 37842, 38199, 39697, 43656, 44520, 44940, 45368, 50456, 50932, 54060, 54570, 56710, 63070, 63665, 68052, 72760, 75684, 76398, 79394, 85065, 89880, 94605, 96407, 101864, 108120, 109140, 113420, 119091, 126140, 127330, 136104, 151368, 152796, 158788, 170130, 189210, 190995, 192814, 198485, 218280, 226840, 238182, 252280, 254660, 289221, 305592, 317576, 340260, 378420, 381990, 385628, 396970, 476364, 482035, 509320, 578442, 595455, 674849, 680520, 756840, 763980, 771256, 793940, 952728, 964070, 1156884, 1190910, 1349698, 1446105, 1527960, 1587880, 1928140, 2024547, 2313768, 2381820, 2699396, 2892210, 3374245, 3856280, 4049094, 4763640, 5398792, 5784420, 6748490, 8098188, 10122735, 11568840, 13496980, 16196376, 20245470, 26993960, 40490940, 80981880]

約数ペア:

[(1, 80981880), (2, 40490940), (3, 26993960), (4, 20245470), (5, 16196376), (6, 13496980), (7, 11568840), (8, 10122735), (10, 8098188), (12, 6748490), (14, 5784420), (15, 5398792), (17, 4763640), (20, 4049094), (21, 3856280), (24, 3374245), (28, 2892210), (30, 2699396), (34, 2381820), (35, 2313768), (40, 2024547), (42, 1928140), (51, 1587880), (53, 1527960), (56, 1446105), (60, 1349698), (68, 1190910), (70, 1156884), (84, 964070), (85, 952728), (102, 793940), (105, 771256), (106, 763980), (107, 756840), (119, 680520), (120, 674849), (136, 595455), (140, 578442), (159, 509320), (168, 482035), (170, 476364), (204, 396970), (210, 385628), (212, 381990), (214, 378420), (238, 340260), (255, 317576), (265, 305592), (280, 289221), (318, 254660), (321, 252280), (340, 238182), (357, 226840), (371, 218280), (408, 198485), (420, 192814), (424, 190995), (428, 189210), (476, 170130), (510, 158788), (530, 152796), (535, 151368), (595, 136104), (636, 127330), (642, 126140), (680, 119091), (714, 113420), (742, 109140), (749, 108120), (795, 101864), (840, 96407), (856, 94605), (901, 89880), (952, 85065), (1020, 79394), (1060, 76398), (1070, 75684), (1113, 72760), (1190, 68052), (1272, 63665), (1284, 63070), (1428, 56710), (1484, 54570), (1498, 54060), (1590, 50932), (1605, 50456), (1785, 45368), (1802, 44940), (1819, 44520), (1855, 43656), (2040, 39697), (2120, 38199), (2140, 37842), (2226, 36380), (2247, 36040), (2380, 34026), (2568, 31535), (2703, 29960), (2856, 28355), (2968, 27285), (2996, 27030), (3180, 25466), (3210, 25228), (3570, 22684), (3604, 22470), (3638, 22260), (3710, 21828), (3745, 21624), (4280, 18921), (4452, 18190), (4494, 18020), (4505, 17976), (4760, 17013), (5406, 14980), (5457, 14840), (5565, 14552), (5671, 14280), (5992, 13515), (6307, 12840), (6360, 12733), (6420, 12614), (7140, 11342), (7208, 11235), (7276, 11130), (7420, 10914), (7490, 10812), (8904, 9095), (8988, 9010)]