247482920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{199583}}^1$

素因数の和:199625

約数の個数: 32

約数和(自身を含む): 574801920

約数和(自身を除く): 327319000

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 199583, 399166, 798332, 997915, 1596664, 1995830, 3991660, 6187073, 7983320, 12374146, 24748292, 30935365, 49496584, 61870730, 123741460, 247482920]

約数ペア:

[(1, 247482920), (2, 123741460), (4, 61870730), (5, 49496584), (8, 30935365), (10, 24748292), (20, 12374146), (31, 7983320), (40, 6187073), (62, 3991660), (124, 1995830), (155, 1596664), (248, 997915), (310, 798332), (620, 399166), (1240, 199583)]