81713870

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{131}}^1$

素因数の和:238

約数の個数: 96

約数和(自身を含む): 184187520

約数和(自身を除く): 102473650

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 49, 67, 70, 95, 98, 131, 133, 134, 190, 245, 262, 266, 335, 469, 490, 655, 665, 670, 917, 931, 938, 1273, 1310, 1330, 1834, 1862, 2345, 2489, 2546, 3283, 4585, 4655, 4690, 4978, 6365, 6419, 6566, 8777, 8911, 9170, 9310, 12445, 12730, 12838, 16415, 17423, 17554, 17822, 24890, 32095, 32830, 34846, 43885, 44555, 61439, 62377, 64190, 87115, 87770, 89110, 121961, 122878, 124754, 166763, 174230, 243922, 307195, 311885, 333526, 430073, 609805, 614390, 623770, 833815, 860146, 1167341, 1219610, 1667630, 2150365, 2334682, 4300730, 5836705, 8171387, 11673410, 16342774, 40856935, 81713870]

約数ペア:

[(1, 81713870), (2, 40856935), (5, 16342774), (7, 11673410), (10, 8171387), (14, 5836705), (19, 4300730), (35, 2334682), (38, 2150365), (49, 1667630), (67, 1219610), (70, 1167341), (95, 860146), (98, 833815), (131, 623770), (133, 614390), (134, 609805), (190, 430073), (245, 333526), (262, 311885), (266, 307195), (335, 243922), (469, 174230), (490, 166763), (655, 124754), (665, 122878), (670, 121961), (917, 89110), (931, 87770), (938, 87115), (1273, 64190), (1310, 62377), (1330, 61439), (1834, 44555), (1862, 43885), (2345, 34846), (2489, 32830), (2546, 32095), (3283, 24890), (4585, 17822), (4655, 17554), (4690, 17423), (4978, 16415), (6365, 12838), (6419, 12730), (6566, 12445), (8777, 9310), (8911, 9170)]