24999020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{661}}^1$

素因数の和:762

約数の個数: 48

約数和(自身を含む): 55163136

約数和(自身を除く): 30164116

約数列:

[1, 2, 4, 5, 10, 20, 31, 61, 62, 122, 124, 155, 244, 305, 310, 610, 620, 661, 1220, 1322, 1891, 2644, 3305, 3782, 6610, 7564, 9455, 13220, 18910, 20491, 37820, 40321, 40982, 80642, 81964, 102455, 161284, 201605, 204910, 403210, 409820, 806420, 1249951, 2499902, 4999804, 6249755, 12499510, 24999020]

約数ペア:

[(1, 24999020), (2, 12499510), (4, 6249755), (5, 4999804), (10, 2499902), (20, 1249951), (31, 806420), (61, 409820), (62, 403210), (122, 204910), (124, 201605), (155, 161284), (244, 102455), (305, 81964), (310, 80642), (610, 40982), (620, 40321), (661, 37820), (1220, 20491), (1322, 18910), (1891, 13220), (2644, 9455), (3305, 7564), (3782, 6610)]