256272015

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{240631}}^1$

素因数の和:240710

約数の個数: 16

約数和(自身を含む): 415812096

約数和(自身を除く): 159540081

約数列:

[1, 3, 5, 15, 71, 213, 355, 1065, 240631, 721893, 1203155, 3609465, 17084801, 51254403, 85424005, 256272015]

約数ペア:

[(1, 256272015), (3, 85424005), (5, 51254403), (15, 17084801), (71, 3609465), (213, 1203155), (355, 721893), (1065, 240631)]