2019450920

素因数分解:

$2^3\times 5^1\times {\mathrm{1213}}^1\times {\mathrm{41621}}^1$

素因数の和:42845

約数の個数: 32

約数和(自身を含む): 4547619720

約数和(自身を除く): 2528168800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1213, 2426, 4852, 6065, 9704, 12130, 24260, 41621, 48520, 83242, 166484, 208105, 332968, 416210, 832420, 1664840, 50486273, 100972546, 201945092, 252431365, 403890184, 504862730, 1009725460, 2019450920]

約数ペア:

[(1, 2019450920), (2, 1009725460), (4, 504862730), (5, 403890184), (8, 252431365), (10, 201945092), (20, 100972546), (40, 50486273), (1213, 1664840), (2426, 832420), (4852, 416210), (6065, 332968), (9704, 208105), (12130, 166484), (24260, 83242), (41621, 48520)]