128215570

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{821}}^1$

素因数の和:955

約数の個数: 64

約数和(自身を含む): 278401536

約数和(自身を除く): 150185966

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 70, 97, 115, 161, 194, 230, 322, 485, 679, 805, 821, 970, 1358, 1610, 1642, 2231, 3395, 4105, 4462, 5747, 6790, 8210, 11155, 11494, 15617, 18883, 22310, 28735, 31234, 37766, 57470, 78085, 79637, 94415, 132181, 156170, 159274, 188830, 264362, 398185, 557459, 660905, 796370, 1114918, 1321810, 1831651, 2787295, 3663302, 5574590, 9158255, 12821557, 18316510, 25643114, 64107785, 128215570]

約数ペア:

[(1, 128215570), (2, 64107785), (5, 25643114), (7, 18316510), (10, 12821557), (14, 9158255), (23, 5574590), (35, 3663302), (46, 2787295), (70, 1831651), (97, 1321810), (115, 1114918), (161, 796370), (194, 660905), (230, 557459), (322, 398185), (485, 264362), (679, 188830), (805, 159274), (821, 156170), (970, 132181), (1358, 94415), (1610, 79637), (1642, 78085), (2231, 57470), (3395, 37766), (4105, 31234), (4462, 28735), (5747, 22310), (6790, 18883), (8210, 15617), (11155, 11494)]