209135615

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{3571}}^1$

素因数の和:3659

約数の個数: 32

約数和(自身を含む): 291646656

約数和(自身を除く): 82511041

約数列:

[1, 5, 13, 17, 53, 65, 85, 221, 265, 689, 901, 1105, 3445, 3571, 4505, 11713, 17855, 46423, 58565, 60707, 189263, 232115, 303535, 789191, 946315, 2460419, 3217471, 3945955, 12302095, 16087355, 41827123, 209135615]

約数ペア:

[(1, 209135615), (5, 41827123), (13, 16087355), (17, 12302095), (53, 3945955), (65, 3217471), (85, 2460419), (221, 946315), (265, 789191), (689, 303535), (901, 232115), (1105, 189263), (3445, 60707), (3571, 58565), (4505, 46423), (11713, 17855)]