90813970

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{9839}}^1$

素因数の和:9930

約数の個数: 32

約数和(自身を含む): 178536960

約数和(自身を除く): 87722990

約数列:

[1, 2, 5, 10, 13, 26, 65, 71, 130, 142, 355, 710, 923, 1846, 4615, 9230, 9839, 19678, 49195, 98390, 127907, 255814, 639535, 698569, 1279070, 1397138, 3492845, 6985690, 9081397, 18162794, 45406985, 90813970]

約数ペア:

[(1, 90813970), (2, 45406985), (5, 18162794), (10, 9081397), (13, 6985690), (26, 3492845), (65, 1397138), (71, 1279070), (130, 698569), (142, 639535), (355, 255814), (710, 127907), (923, 98390), (1846, 49195), (4615, 19678), (9230, 9839)]