20693360

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{6991}}^1$

素因数の和:7041

約数の個数: 40

約数和(自身を含む): 49419456

約数和(自身を除く): 28726096

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 592, 740, 1480, 2960, 6991, 13982, 27964, 34955, 55928, 69910, 111856, 139820, 258667, 279640, 517334, 559280, 1034668, 1293335, 2069336, 2586670, 4138672, 5173340, 10346680, 20693360]

約数ペア:

[(1, 20693360), (2, 10346680), (4, 5173340), (5, 4138672), (8, 2586670), (10, 2069336), (16, 1293335), (20, 1034668), (37, 559280), (40, 517334), (74, 279640), (80, 258667), (148, 139820), (185, 111856), (296, 69910), (370, 55928), (592, 34955), (740, 27964), (1480, 13982), (2960, 6991)]