3986920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{491}}^1$

素因数の和:538

約数の個数: 64

約数和(自身を含む): 10627200

約数和(自身を除く): 6640280

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, 491, 580, 812, 982, 1015, 1160, 1624, 1964, 2030, 2455, 3437, 3928, 4060, 4910, 6874, 8120, 9820, 13748, 14239, 17185, 19640, 27496, 28478, 34370, 56956, 68740, 71195, 99673, 113912, 137480, 142390, 199346, 284780, 398692, 498365, 569560, 797384, 996730, 1993460, 3986920]

約数ペア:

[(1, 3986920), (2, 1993460), (4, 996730), (5, 797384), (7, 569560), (8, 498365), (10, 398692), (14, 284780), (20, 199346), (28, 142390), (29, 137480), (35, 113912), (40, 99673), (56, 71195), (58, 68740), (70, 56956), (116, 34370), (140, 28478), (145, 27496), (203, 19640), (232, 17185), (280, 14239), (290, 13748), (406, 9820), (491, 8120), (580, 6874), (812, 4910), (982, 4060), (1015, 3928), (1160, 3437), (1624, 2455), (1964, 2030)]