2101472840

素因数分解:

$2^3\times 5^1\times {\mathrm{5303}}^1\times {\mathrm{9907}}^1$

素因数の和:15221

約数の個数: 32

約数和(自身を含む): 4729682880

約数和(自身を除く): 2628210040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5303, 9907, 10606, 19814, 21212, 26515, 39628, 42424, 49535, 53030, 79256, 99070, 106060, 198140, 212120, 396280, 52536821, 105073642, 210147284, 262684105, 420294568, 525368210, 1050736420, 2101472840]

約数ペア:

[(1, 2101472840), (2, 1050736420), (4, 525368210), (5, 420294568), (8, 262684105), (10, 210147284), (20, 105073642), (40, 52536821), (5303, 396280), (9907, 212120), (10606, 198140), (19814, 106060), (21212, 99070), (26515, 79256), (39628, 53030), (42424, 49535)]