31574140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{121439}}^1$

素因数の和:121461

約数の個数: 24

約数和(自身を含む): 71406720

約数和(自身を除く): 39832580

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 121439, 242878, 485756, 607195, 1214390, 1578707, 2428780, 3157414, 6314828, 7893535, 15787070, 31574140]

約数ペア:

[(1, 31574140), (2, 15787070), (4, 7893535), (5, 6314828), (10, 3157414), (13, 2428780), (20, 1578707), (26, 1214390), (52, 607195), (65, 485756), (130, 242878), (260, 121439)]