81820920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{681841}}^1$

素因数の和:681855

約数の個数: 32

約数和(自身を含む): 245463120

約数和(自身を除く): 163642200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 681841, 1363682, 2045523, 2727364, 3409205, 4091046, 5454728, 6818410, 8182092, 10227615, 13636820, 16364184, 20455230, 27273640, 40910460, 81820920]

約数ペア:

[(1, 81820920), (2, 40910460), (3, 27273640), (4, 20455230), (5, 16364184), (6, 13636820), (8, 10227615), (10, 8182092), (12, 6818410), (15, 5454728), (20, 4091046), (24, 3409205), (30, 2727364), (40, 2045523), (60, 1363682), (120, 681841)]