131544920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{252971}}^1$

素因数の和:252995

約数の個数: 32

約数和(自身を含む): 318744720

約数和(自身を除く): 187199800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 252971, 505942, 1011884, 1264855, 2023768, 2529710, 3288623, 5059420, 6577246, 10118840, 13154492, 16443115, 26308984, 32886230, 65772460, 131544920]

約数ペア:

[(1, 131544920), (2, 65772460), (4, 32886230), (5, 26308984), (8, 16443115), (10, 13154492), (13, 10118840), (20, 6577246), (26, 5059420), (40, 3288623), (52, 2529710), (65, 2023768), (104, 1264855), (130, 1011884), (260, 505942), (520, 252971)]