31191940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{7057}}^1$

素因数の和:7096

約数の個数: 48

約数和(自身を含む): 74701872

約数和(自身を除く): 43509932

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4420, 7057, 14114, 28228, 35285, 70570, 91741, 119969, 141140, 183482, 239938, 366964, 458705, 479876, 599845, 917410, 1199690, 1559597, 1834820, 2399380, 3119194, 6238388, 7797985, 15595970, 31191940]

約数ペア:

[(1, 31191940), (2, 15595970), (4, 7797985), (5, 6238388), (10, 3119194), (13, 2399380), (17, 1834820), (20, 1559597), (26, 1199690), (34, 917410), (52, 599845), (65, 479876), (68, 458705), (85, 366964), (130, 239938), (170, 183482), (221, 141140), (260, 119969), (340, 91741), (442, 70570), (884, 35285), (1105, 28228), (2210, 14114), (4420, 7057)]