20098520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{38651}}^1$

素因数の和:38675

約数の個数: 32

約数和(自身を含む): 48701520

約数和(自身を除く): 28603000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 38651, 77302, 154604, 193255, 309208, 386510, 502463, 773020, 1004926, 1546040, 2009852, 2512315, 4019704, 5024630, 10049260, 20098520]

約数ペア:

[(1, 20098520), (2, 10049260), (4, 5024630), (5, 4019704), (8, 2512315), (10, 2009852), (13, 1546040), (20, 1004926), (26, 773020), (40, 502463), (52, 386510), (65, 309208), (104, 193255), (130, 154604), (260, 77302), (520, 38651)]