278364640

素因数分解:

$2^5\times 5^1\times {\mathrm{241}}^1\times {\mathrm{7219}}^1$

素因数の和:7475

約数の個数: 48

約数和(自身を含む): 660456720

約数和(自身を除く): 382092080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 241, 482, 964, 1205, 1928, 2410, 3856, 4820, 7219, 7712, 9640, 14438, 19280, 28876, 36095, 38560, 57752, 72190, 115504, 144380, 231008, 288760, 577520, 1155040, 1739779, 3479558, 6959116, 8698895, 13918232, 17397790, 27836464, 34795580, 55672928, 69591160, 139182320, 278364640]

約数ペア:

[(1, 278364640), (2, 139182320), (4, 69591160), (5, 55672928), (8, 34795580), (10, 27836464), (16, 17397790), (20, 13918232), (32, 8698895), (40, 6959116), (80, 3479558), (160, 1739779), (241, 1155040), (482, 577520), (964, 288760), (1205, 231008), (1928, 144380), (2410, 115504), (3856, 72190), (4820, 57752), (7219, 38560), (7712, 36095), (9640, 28876), (14438, 19280)]