647316628

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{10243}}^1$

素因数の和:10352

約数の個数: 48

約数和(自身を含む): 1351552384

約数和(自身を除く): 704235756

約数列:

[1, 2, 4, 7, 14, 28, 37, 61, 74, 122, 148, 244, 259, 427, 518, 854, 1036, 1708, 2257, 4514, 9028, 10243, 15799, 20486, 31598, 40972, 63196, 71701, 143402, 286804, 378991, 624823, 757982, 1249646, 1515964, 2499292, 2652937, 4373761, 5305874, 8747522, 10611748, 17495044, 23118451, 46236902, 92473804, 161829157, 323658314, 647316628]

約数ペア:

[(1, 647316628), (2, 323658314), (4, 161829157), (7, 92473804), (14, 46236902), (28, 23118451), (37, 17495044), (61, 10611748), (74, 8747522), (122, 5305874), (148, 4373761), (244, 2652937), (259, 2499292), (427, 1515964), (518, 1249646), (854, 757982), (1036, 624823), (1708, 378991), (2257, 286804), (4514, 143402), (9028, 71701), (10243, 63196), (15799, 40972), (20486, 31598)]