40078840

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{8867}}^1$

素因数の和:8991

約数の個数: 32

約数和(自身を含む): 90985680

約数和(自身を除く): 50906840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 2260, 4520, 8867, 17734, 35468, 44335, 70936, 88670, 177340, 354680, 1001971, 2003942, 4007884, 5009855, 8015768, 10019710, 20039420, 40078840]

約数ペア:

[(1, 40078840), (2, 20039420), (4, 10019710), (5, 8015768), (8, 5009855), (10, 4007884), (20, 2003942), (40, 1001971), (113, 354680), (226, 177340), (452, 88670), (565, 70936), (904, 44335), (1130, 35468), (2260, 17734), (4520, 8867)]