156789215

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{2749}}^1$

素因数の和:2843

約数の個数: 32

約数和(自身を含む): 220968000

約数和(自身を除く): 64178785

約数列:

[1, 5, 11, 17, 55, 61, 85, 187, 305, 671, 935, 1037, 2749, 3355, 5185, 11407, 13745, 30239, 46733, 57035, 151195, 167689, 233665, 514063, 838445, 1844579, 2570315, 2850713, 9222895, 14253565, 31357843, 156789215]

約数ペア:

[(1, 156789215), (5, 31357843), (11, 14253565), (17, 9222895), (55, 2850713), (61, 2570315), (85, 1844579), (187, 838445), (305, 514063), (671, 233665), (935, 167689), (1037, 151195), (2749, 57035), (3355, 46733), (5185, 30239), (11407, 13745)]