64839860

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{739}}^1$

素因数の和:896

約数の個数: 48

約数和(自身を含む): 140978880

約数和(自身を除く): 76139020

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 107, 164, 205, 214, 410, 428, 535, 739, 820, 1070, 1478, 2140, 2956, 3695, 4387, 7390, 8774, 14780, 17548, 21935, 30299, 43870, 60598, 79073, 87740, 121196, 151495, 158146, 302990, 316292, 395365, 605980, 790730, 1581460, 3241993, 6483986, 12967972, 16209965, 32419930, 64839860]

約数ペア:

[(1, 64839860), (2, 32419930), (4, 16209965), (5, 12967972), (10, 6483986), (20, 3241993), (41, 1581460), (82, 790730), (107, 605980), (164, 395365), (205, 316292), (214, 302990), (410, 158146), (428, 151495), (535, 121196), (739, 87740), (820, 79073), (1070, 60598), (1478, 43870), (2140, 30299), (2956, 21935), (3695, 17548), (4387, 14780), (7390, 8774)]