56164780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{223}}^1\times {\mathrm{257}}^1$

素因数の和:503

約数の個数: 72

約数和(自身を含む): 138354048

約数和(自身を除く): 82189268

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 223, 245, 257, 446, 490, 514, 892, 980, 1028, 1115, 1285, 1561, 1799, 2230, 2570, 3122, 3598, 4460, 5140, 6244, 7196, 7805, 8995, 10927, 12593, 15610, 17990, 21854, 25186, 31220, 35980, 43708, 50372, 54635, 57311, 62965, 109270, 114622, 125930, 218540, 229244, 251860, 286555, 401177, 573110, 802354, 1146220, 1604708, 2005885, 2808239, 4011770, 5616478, 8023540, 11232956, 14041195, 28082390, 56164780]

約数ペア:

[(1, 56164780), (2, 28082390), (4, 14041195), (5, 11232956), (7, 8023540), (10, 5616478), (14, 4011770), (20, 2808239), (28, 2005885), (35, 1604708), (49, 1146220), (70, 802354), (98, 573110), (140, 401177), (196, 286555), (223, 251860), (245, 229244), (257, 218540), (446, 125930), (490, 114622), (514, 109270), (892, 62965), (980, 57311), (1028, 54635), (1115, 50372), (1285, 43708), (1561, 35980), (1799, 31220), (2230, 25186), (2570, 21854), (3122, 17990), (3598, 15610), (4460, 12593), (5140, 10927), (6244, 8995), (7196, 7805)]