628291216

素因数分解:

$2^4\times 7^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{2243}}^1$

素因数の和:2360

約数の個数: 80

約数和(自身を含む): 1449157248

約数和(自身を除く): 820866032

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 41, 56, 61, 82, 112, 122, 164, 244, 287, 328, 427, 488, 574, 656, 854, 976, 1148, 1708, 2243, 2296, 2501, 3416, 4486, 4592, 5002, 6832, 8972, 10004, 15701, 17507, 17944, 20008, 31402, 35014, 35888, 40016, 62804, 70028, 91963, 125608, 136823, 140056, 183926, 251216, 273646, 280112, 367852, 547292, 643741, 735704, 957761, 1094584, 1287482, 1471408, 1915522, 2189168, 2574964, 3831044, 5149928, 5609743, 7662088, 10299856, 11219486, 15324176, 22438972, 39268201, 44877944, 78536402, 89755888, 157072804, 314145608, 628291216]

約数ペア:

[(1, 628291216), (2, 314145608), (4, 157072804), (7, 89755888), (8, 78536402), (14, 44877944), (16, 39268201), (28, 22438972), (41, 15324176), (56, 11219486), (61, 10299856), (82, 7662088), (112, 5609743), (122, 5149928), (164, 3831044), (244, 2574964), (287, 2189168), (328, 1915522), (427, 1471408), (488, 1287482), (574, 1094584), (656, 957761), (854, 735704), (976, 643741), (1148, 547292), (1708, 367852), (2243, 280112), (2296, 273646), (2501, 251216), (3416, 183926), (4486, 140056), (4592, 136823), (5002, 125608), (6832, 91963), (8972, 70028), (10004, 62804), (15701, 40016), (17507, 35888), (17944, 35014), (20008, 31402)]