31963880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61469}}^1$

素因数の和:61493

約数の個数: 32

約数和(自身を含む): 77452200

約数和(自身を除く): 45488320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 61469, 122938, 245876, 307345, 491752, 614690, 799097, 1229380, 1598194, 2458760, 3196388, 3995485, 6392776, 7990970, 15981940, 31963880]

約数ペア:

[(1, 31963880), (2, 15981940), (4, 7990970), (5, 6392776), (8, 3995485), (10, 3196388), (13, 2458760), (20, 1598194), (26, 1229380), (40, 799097), (52, 614690), (65, 491752), (104, 307345), (130, 245876), (260, 122938), (520, 61469)]