28996520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{3571}}^1$

素因数の和:3618

約数の個数: 64

約数和(自身を含む): 77155200

約数和(自身を除く): 48158680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 56, 58, 70, 116, 140, 145, 203, 232, 280, 290, 406, 580, 812, 1015, 1160, 1624, 2030, 3571, 4060, 7142, 8120, 14284, 17855, 24997, 28568, 35710, 49994, 71420, 99988, 103559, 124985, 142840, 199976, 207118, 249970, 414236, 499940, 517795, 724913, 828472, 999880, 1035590, 1449826, 2071180, 2899652, 3624565, 4142360, 5799304, 7249130, 14498260, 28996520]

約数ペア:

[(1, 28996520), (2, 14498260), (4, 7249130), (5, 5799304), (7, 4142360), (8, 3624565), (10, 2899652), (14, 2071180), (20, 1449826), (28, 1035590), (29, 999880), (35, 828472), (40, 724913), (56, 517795), (58, 499940), (70, 414236), (116, 249970), (140, 207118), (145, 199976), (203, 142840), (232, 124985), (280, 103559), (290, 99988), (406, 71420), (580, 49994), (812, 35710), (1015, 28568), (1160, 24997), (1624, 17855), (2030, 14284), (3571, 8120), (4060, 7142)]