8991320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17291}}^1$

素因数の和:17315

約数の個数: 32

約数和(自身を含む): 21787920

約数和(自身を除く): 12796600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 17291, 34582, 69164, 86455, 138328, 172910, 224783, 345820, 449566, 691640, 899132, 1123915, 1798264, 2247830, 4495660, 8991320]

約数ペア:

[(1, 8991320), (2, 4495660), (4, 2247830), (5, 1798264), (8, 1123915), (10, 899132), (13, 691640), (20, 449566), (26, 345820), (40, 224783), (52, 172910), (65, 138328), (104, 86455), (130, 69164), (260, 34582), (520, 17291)]