72530440

素因数分解:

$2^3\times 5^1\times {\mathrm{271}}^1\times {\mathrm{6691}}^1$

素因数の和:6973

約数の個数: 32

約数和(自身を含む): 163820160

約数和(自身を除く): 91289720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 271, 542, 1084, 1355, 2168, 2710, 5420, 6691, 10840, 13382, 26764, 33455, 53528, 66910, 133820, 267640, 1813261, 3626522, 7253044, 9066305, 14506088, 18132610, 36265220, 72530440]

約数ペア:

[(1, 72530440), (2, 36265220), (4, 18132610), (5, 14506088), (8, 9066305), (10, 7253044), (20, 3626522), (40, 1813261), (271, 267640), (542, 133820), (1084, 66910), (1355, 53528), (2168, 33455), (2710, 26764), (5420, 13382), (6691, 10840)]