7981960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{983}}^1$

素因数の和:1030

約数の個数: 64

約数和(自身を含む): 21254400

約数和(自身を除く): 13272440

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, 983, 1015, 1160, 1624, 1966, 2030, 3932, 4060, 4915, 6881, 7864, 8120, 9830, 13762, 19660, 27524, 28507, 34405, 39320, 55048, 57014, 68810, 114028, 137620, 142535, 199549, 228056, 275240, 285070, 399098, 570140, 798196, 997745, 1140280, 1596392, 1995490, 3990980, 7981960]

約数ペア:

[(1, 7981960), (2, 3990980), (4, 1995490), (5, 1596392), (7, 1140280), (8, 997745), (10, 798196), (14, 570140), (20, 399098), (28, 285070), (29, 275240), (35, 228056), (40, 199549), (56, 142535), (58, 137620), (70, 114028), (116, 68810), (140, 57014), (145, 55048), (203, 39320), (232, 34405), (280, 28507), (290, 27524), (406, 19660), (580, 13762), (812, 9830), (983, 8120), (1015, 7864), (1160, 6881), (1624, 4915), (1966, 4060), (2030, 3932)]