20269550

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1997}}^1$

素因数の和:2045

約数の個数: 48

約数和(自身を含む): 44595360

約数和(自身を除く): 24325810

約数列:

[1, 2, 5, 7, 10, 14, 25, 29, 35, 50, 58, 70, 145, 175, 203, 290, 350, 406, 725, 1015, 1450, 1997, 2030, 3994, 5075, 9985, 10150, 13979, 19970, 27958, 49925, 57913, 69895, 99850, 115826, 139790, 289565, 349475, 405391, 579130, 698950, 810782, 1447825, 2026955, 2895650, 4053910, 10134775, 20269550]

約数ペア:

[(1, 20269550), (2, 10134775), (5, 4053910), (7, 2895650), (10, 2026955), (14, 1447825), (25, 810782), (29, 698950), (35, 579130), (50, 405391), (58, 349475), (70, 289565), (145, 139790), (175, 115826), (203, 99850), (290, 69895), (350, 57913), (406, 49925), (725, 27958), (1015, 19970), (1450, 13979), (1997, 10150), (2030, 9985), (3994, 5075)]