64733920

素因数分解:

$2^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{97}}^2$

素因数の和:252

約数の個数: 72

約数和(自身を含む): 158120424

約数和(自身を除く): 93386504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 80, 86, 97, 160, 172, 194, 215, 344, 388, 430, 485, 688, 776, 860, 970, 1376, 1552, 1720, 1940, 3104, 3440, 3880, 4171, 6880, 7760, 8342, 9409, 15520, 16684, 18818, 20855, 33368, 37636, 41710, 47045, 66736, 75272, 83420, 94090, 133472, 150544, 166840, 188180, 301088, 333680, 376360, 404587, 667360, 752720, 809174, 1505440, 1618348, 2022935, 3236696, 4045870, 6473392, 8091740, 12946784, 16183480, 32366960, 64733920]

約数ペア:

[(1, 64733920), (2, 32366960), (4, 16183480), (5, 12946784), (8, 8091740), (10, 6473392), (16, 4045870), (20, 3236696), (32, 2022935), (40, 1618348), (43, 1505440), (80, 809174), (86, 752720), (97, 667360), (160, 404587), (172, 376360), (194, 333680), (215, 301088), (344, 188180), (388, 166840), (430, 150544), (485, 133472), (688, 94090), (776, 83420), (860, 75272), (970, 66736), (1376, 47045), (1552, 41710), (1720, 37636), (1940, 33368), (3104, 20855), (3440, 18818), (3880, 16684), (4171, 15520), (6880, 9409), (7760, 8342)]