64868960

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2399}}^1$

素因数の和:2440

約数の個数: 72

約数和(自身を含む): 166017600

約数和(自身を除く): 101148640

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 169, 208, 260, 338, 416, 520, 676, 845, 1040, 1352, 1690, 2080, 2399, 2704, 3380, 4798, 5408, 6760, 9596, 11995, 13520, 19192, 23990, 27040, 31187, 38384, 47980, 62374, 76768, 95960, 124748, 155935, 191920, 249496, 311870, 383840, 405431, 498992, 623740, 810862, 997984, 1247480, 1621724, 2027155, 2494960, 3243448, 4054310, 4989920, 6486896, 8108620, 12973792, 16217240, 32434480, 64868960]

約数ペア:

[(1, 64868960), (2, 32434480), (4, 16217240), (5, 12973792), (8, 8108620), (10, 6486896), (13, 4989920), (16, 4054310), (20, 3243448), (26, 2494960), (32, 2027155), (40, 1621724), (52, 1247480), (65, 997984), (80, 810862), (104, 623740), (130, 498992), (160, 405431), (169, 383840), (208, 311870), (260, 249496), (338, 191920), (416, 155935), (520, 124748), (676, 95960), (845, 76768), (1040, 62374), (1352, 47980), (1690, 38384), (2080, 31187), (2399, 27040), (2704, 23990), (3380, 19192), (4798, 13520), (5408, 11995), (6760, 9596)]