68489840

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{10837}}^1$

素因数の和:10929

約数の個数: 40

約数和(自身を含む): 161269440

約数和(自身を除く): 92779600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 3160, 6320, 10837, 21674, 43348, 54185, 86696, 108370, 173392, 216740, 433480, 856123, 866960, 1712246, 3424492, 4280615, 6848984, 8561230, 13697968, 17122460, 34244920, 68489840]

約数ペア:

[(1, 68489840), (2, 34244920), (4, 17122460), (5, 13697968), (8, 8561230), (10, 6848984), (16, 4280615), (20, 3424492), (40, 1712246), (79, 866960), (80, 856123), (158, 433480), (316, 216740), (395, 173392), (632, 108370), (790, 86696), (1264, 54185), (1580, 43348), (3160, 21674), (6320, 10837)]