40289840

素因数分解:

$2^4\times 5^1\times {\mathrm{503623}}^1$

素因数の和:503636

約数の個数: 20

約数和(自身を含む): 93674064

約数和(自身を除く): 53384224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 503623, 1007246, 2014492, 2518115, 4028984, 5036230, 8057968, 10072460, 20144920, 40289840]

約数ペア:

[(1, 40289840), (2, 20144920), (4, 10072460), (5, 8057968), (8, 5036230), (10, 4028984), (16, 2518115), (20, 2014492), (40, 1007246), (80, 503623)]