15920765

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{269}}^1$

素因数の和:389

約数の個数: 32

約数和(自身を含む): 23328000

約数和(自身を除く): 7407235

約数列:

[1, 5, 7, 19, 35, 89, 95, 133, 269, 445, 623, 665, 1345, 1691, 1883, 3115, 5111, 8455, 9415, 11837, 23941, 25555, 35777, 59185, 119705, 167587, 178885, 454879, 837935, 2274395, 3184153, 15920765]

約数ペア:

[(1, 15920765), (5, 3184153), (7, 2274395), (19, 837935), (35, 454879), (89, 178885), (95, 167587), (133, 119705), (269, 59185), (445, 35777), (623, 25555), (665, 23941), (1345, 11837), (1691, 9415), (1883, 8455), (3115, 5111)]