66628600

素因数分解:

$2^3\times 5^2\times {\mathrm{79}}^1\times {\mathrm{4217}}^1$

素因数の和:4312

約数の個数: 48

約数和(自身を含む): 156909600

約数和(自身を除く): 90281000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 79, 100, 158, 200, 316, 395, 632, 790, 1580, 1975, 3160, 3950, 4217, 7900, 8434, 15800, 16868, 21085, 33736, 42170, 84340, 105425, 168680, 210850, 333143, 421700, 666286, 843400, 1332572, 1665715, 2665144, 3331430, 6662860, 8328575, 13325720, 16657150, 33314300, 66628600]

約数ペア:

[(1, 66628600), (2, 33314300), (4, 16657150), (5, 13325720), (8, 8328575), (10, 6662860), (20, 3331430), (25, 2665144), (40, 1665715), (50, 1332572), (79, 843400), (100, 666286), (158, 421700), (200, 333143), (316, 210850), (395, 168680), (632, 105425), (790, 84340), (1580, 42170), (1975, 33736), (3160, 21085), (3950, 16868), (4217, 15800), (7900, 8434)]