217271760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{905299}}^1$

素因数の和:905315

約数の個数: 40

約数和(自身を含む): 673543200

約数和(自身を除く): 456271440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 905299, 1810598, 2715897, 3621196, 4526495, 5431794, 7242392, 9052990, 10863588, 13579485, 14484784, 18105980, 21727176, 27158970, 36211960, 43454352, 54317940, 72423920, 108635880, 217271760]

約数ペア:

[(1, 217271760), (2, 108635880), (3, 72423920), (4, 54317940), (5, 43454352), (6, 36211960), (8, 27158970), (10, 21727176), (12, 18105980), (15, 14484784), (16, 13579485), (20, 10863588), (24, 9052990), (30, 7242392), (40, 5431794), (48, 4526495), (60, 3621196), (80, 2715897), (120, 1810598), (240, 905299)]