31553840

素因数分解:

$2^4\times 5^1\times {\mathrm{137}}^1\times {\mathrm{2879}}^1$

素因数の和:3029

約数の個数: 40

約数和(自身を含む): 73923840

約数和(自身を除く): 42370000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 137, 274, 548, 685, 1096, 1370, 2192, 2740, 2879, 5480, 5758, 10960, 11516, 14395, 23032, 28790, 46064, 57580, 115160, 230320, 394423, 788846, 1577692, 1972115, 3155384, 3944230, 6310768, 7888460, 15776920, 31553840]

約数ペア:

[(1, 31553840), (2, 15776920), (4, 7888460), (5, 6310768), (8, 3944230), (10, 3155384), (16, 1972115), (20, 1577692), (40, 788846), (80, 394423), (137, 230320), (274, 115160), (548, 57580), (685, 46064), (1096, 28790), (1370, 23032), (2192, 14395), (2740, 11516), (2879, 10960), (5480, 5758)]