66355280

素因数分解:

$2^4\times 5^1\times {\mathrm{211}}^1\times {\mathrm{3931}}^1$

素因数の和:4155

約数の個数: 40

約数和(自身を含む): 155046624

約数和(自身を除く): 88691344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 211, 422, 844, 1055, 1688, 2110, 3376, 3931, 4220, 7862, 8440, 15724, 16880, 19655, 31448, 39310, 62896, 78620, 157240, 314480, 829441, 1658882, 3317764, 4147205, 6635528, 8294410, 13271056, 16588820, 33177640, 66355280]

約数ペア:

[(1, 66355280), (2, 33177640), (4, 16588820), (5, 13271056), (8, 8294410), (10, 6635528), (16, 4147205), (20, 3317764), (40, 1658882), (80, 829441), (211, 314480), (422, 157240), (844, 78620), (1055, 62896), (1688, 39310), (2110, 31448), (3376, 19655), (3931, 16880), (4220, 15724), (7862, 8440)]