31456240

素因数分解:

$2^4\times 5^1\times {\mathrm{393203}}^1$

素因数の和:393216

約数の個数: 20

約数和(自身を含む): 73135944

約数和(自身を除く): 41679704

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 393203, 786406, 1572812, 1966015, 3145624, 3932030, 6291248, 7864060, 15728120, 31456240]

約数ペア:

[(1, 31456240), (2, 15728120), (4, 7864060), (5, 6291248), (8, 3932030), (10, 3145624), (16, 1966015), (20, 1572812), (40, 786406), (80, 393203)]