20291360

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{4091}}^1$

素因数の和:4137

約数の個数: 48

約数和(自身を含む): 49496832

約数和(自身を除く): 29205472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 992, 1240, 2480, 4091, 4960, 8182, 16364, 20455, 32728, 40910, 65456, 81820, 126821, 130912, 163640, 253642, 327280, 507284, 634105, 654560, 1014568, 1268210, 2029136, 2536420, 4058272, 5072840, 10145680, 20291360]

約数ペア:

[(1, 20291360), (2, 10145680), (4, 5072840), (5, 4058272), (8, 2536420), (10, 2029136), (16, 1268210), (20, 1014568), (31, 654560), (32, 634105), (40, 507284), (62, 327280), (80, 253642), (124, 163640), (155, 130912), (160, 126821), (248, 81820), (310, 65456), (496, 40910), (620, 32728), (992, 20455), (1240, 16364), (2480, 8182), (4091, 4960)]