249222640

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{100493}}^1$

素因数の和:100537

約数の個数: 40

約数和(自身を含む): 598140288

約数和(自身を除く): 348917648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 100493, 200986, 401972, 502465, 803944, 1004930, 1607888, 2009860, 3115283, 4019720, 6230566, 8039440, 12461132, 15576415, 24922264, 31152830, 49844528, 62305660, 124611320, 249222640]

約数ペア:

[(1, 249222640), (2, 124611320), (4, 62305660), (5, 49844528), (8, 31152830), (10, 24922264), (16, 15576415), (20, 12461132), (31, 8039440), (40, 6230566), (62, 4019720), (80, 3115283), (124, 2009860), (155, 1607888), (248, 1004930), (310, 803944), (496, 502465), (620, 401972), (1240, 200986), (2480, 100493)]