71985220

素因数分解:

$2^2\times 5^1\times {\mathrm{647}}^1\times {\mathrm{5563}}^1$

素因数の和:6219

約数の個数: 24

約数和(自身を含む): 151429824

約数和(自身を除く): 79444604

約数列:

[1, 2, 4, 5, 10, 20, 647, 1294, 2588, 3235, 5563, 6470, 11126, 12940, 22252, 27815, 55630, 111260, 3599261, 7198522, 14397044, 17996305, 35992610, 71985220]

約数ペア:

[(1, 71985220), (2, 35992610), (4, 17996305), (5, 14397044), (10, 7198522), (20, 3599261), (647, 111260), (1294, 55630), (2588, 27815), (3235, 22252), (5563, 12940), (6470, 11126)]