3990980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{983}}^1$

素因数の和:1028

約数の個数: 48

約数和(自身を含む): 9918720

約数和(自身を除く): 5927740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 983, 1015, 1966, 2030, 3932, 4060, 4915, 6881, 9830, 13762, 19660, 27524, 28507, 34405, 57014, 68810, 114028, 137620, 142535, 199549, 285070, 399098, 570140, 798196, 997745, 1995490, 3990980]

約数ペア:

[(1, 3990980), (2, 1995490), (4, 997745), (5, 798196), (7, 570140), (10, 399098), (14, 285070), (20, 199549), (28, 142535), (29, 137620), (35, 114028), (58, 68810), (70, 57014), (116, 34405), (140, 28507), (145, 27524), (203, 19660), (290, 13762), (406, 9830), (580, 6881), (812, 4915), (983, 4060), (1015, 3932), (1966, 2030)]