20387320

素因数分解:

$2^3\times 5^1\times {\mathrm{283}}^1\times {\mathrm{1801}}^1$

素因数の和:2095

約数の個数: 32

約数和(自身を含む): 46059120

約数和(自身を除く): 25671800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 283, 566, 1132, 1415, 1801, 2264, 2830, 3602, 5660, 7204, 9005, 11320, 14408, 18010, 36020, 72040, 509683, 1019366, 2038732, 2548415, 4077464, 5096830, 10193660, 20387320]

約数ペア:

[(1, 20387320), (2, 10193660), (4, 5096830), (5, 4077464), (8, 2548415), (10, 2038732), (20, 1019366), (40, 509683), (283, 72040), (566, 36020), (1132, 18010), (1415, 14408), (1801, 11320), (2264, 9005), (2830, 7204), (3602, 5660)]