31978870

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{349}}^1$

素因数の和:398

約数の個数: 96

約数和(自身を含む): 77565600

約数和(自身を除く): 45586730

約数列:

[1, 2, 5, 7, 10, 11, 14, 17, 22, 34, 35, 49, 55, 70, 77, 85, 98, 110, 119, 154, 170, 187, 238, 245, 349, 374, 385, 490, 539, 595, 698, 770, 833, 935, 1078, 1190, 1309, 1666, 1745, 1870, 2443, 2618, 2695, 3490, 3839, 4165, 4886, 5390, 5933, 6545, 7678, 8330, 9163, 11866, 12215, 13090, 17101, 18326, 19195, 24430, 26873, 29665, 34202, 38390, 41531, 45815, 53746, 59330, 65263, 83062, 85505, 91630, 130526, 134365, 171010, 188111, 207655, 268730, 290717, 326315, 376222, 415310, 456841, 581434, 652630, 913682, 940555, 1453585, 1881110, 2284205, 2907170, 3197887, 4568410, 6395774, 15989435, 31978870]

約数ペア:

[(1, 31978870), (2, 15989435), (5, 6395774), (7, 4568410), (10, 3197887), (11, 2907170), (14, 2284205), (17, 1881110), (22, 1453585), (34, 940555), (35, 913682), (49, 652630), (55, 581434), (70, 456841), (77, 415310), (85, 376222), (98, 326315), (110, 290717), (119, 268730), (154, 207655), (170, 188111), (187, 171010), (238, 134365), (245, 130526), (349, 91630), (374, 85505), (385, 83062), (490, 65263), (539, 59330), (595, 53746), (698, 45815), (770, 41531), (833, 38390), (935, 34202), (1078, 29665), (1190, 26873), (1309, 24430), (1666, 19195), (1745, 18326), (1870, 17101), (2443, 13090), (2618, 12215), (2695, 11866), (3490, 9163), (3839, 8330), (4165, 7678), (4886, 6545), (5390, 5933)]