20471750

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{6299}}^1$

素因数の和:6329

約数の個数: 32

約数和(自身を含む): 41277600

約数和(自身を除く): 20805850

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 325, 650, 1625, 3250, 6299, 12598, 31495, 62990, 81887, 157475, 163774, 314950, 409435, 787375, 818870, 1574750, 2047175, 4094350, 10235875, 20471750]

約数ペア:

[(1, 20471750), (2, 10235875), (5, 4094350), (10, 2047175), (13, 1574750), (25, 818870), (26, 787375), (50, 409435), (65, 314950), (125, 163774), (130, 157475), (250, 81887), (325, 62990), (650, 31495), (1625, 12598), (3250, 6299)]