31242160

素因数分解:

$2^4\times 5^1\times {\mathrm{390527}}^1$

素因数の和:390540

約数の個数: 20

約数和(自身を含む): 72638208

約数和(自身を除く): 41396048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 390527, 781054, 1562108, 1952635, 3124216, 3905270, 6248432, 7810540, 15621080, 31242160]

約数ペア:

[(1, 31242160), (2, 15621080), (4, 7810540), (5, 6248432), (8, 3905270), (10, 3124216), (16, 1952635), (20, 1562108), (40, 781054), (80, 390527)]