90068840

素因数分解:

$2^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{8971}}^1$

素因数の和:9233

約数の個数: 32

約数和(自身を含む): 203484960

約数和(自身を除く): 113416120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 251, 502, 1004, 1255, 2008, 2510, 5020, 8971, 10040, 17942, 35884, 44855, 71768, 89710, 179420, 358840, 2251721, 4503442, 9006884, 11258605, 18013768, 22517210, 45034420, 90068840]

約数ペア:

[(1, 90068840), (2, 45034420), (4, 22517210), (5, 18013768), (8, 11258605), (10, 9006884), (20, 4503442), (40, 2251721), (251, 358840), (502, 179420), (1004, 89710), (1255, 71768), (2008, 44855), (2510, 35884), (5020, 17942), (8971, 10040)]