215215

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1$

素因数の和:79

約数の個数: 32

約数和(自身を含む): 354816

約数和(自身を除く): 139601

約数列:

[1, 5, 7, 11, 13, 35, 43, 55, 65, 77, 91, 143, 215, 301, 385, 455, 473, 559, 715, 1001, 1505, 2365, 2795, 3311, 3913, 5005, 6149, 16555, 19565, 30745, 43043, 215215]

約数ペア:

[(1, 215215), (5, 43043), (7, 30745), (11, 19565), (13, 16555), (35, 6149), (43, 5005), (55, 3913), (65, 3311), (77, 2795), (91, 2365), (143, 1505), (215, 1001), (301, 715), (385, 559), (455, 473)]