256356405

素因数分解:

$3^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{85027}}^1$

素因数の和:85105

約数の個数: 24

約数和(自身を含む): 450988512

約数和(自身を除く): 194632107

約数列:

[1, 3, 5, 9, 15, 45, 67, 201, 335, 603, 1005, 3015, 85027, 255081, 425135, 765243, 1275405, 3826215, 5696809, 17090427, 28484045, 51271281, 85452135, 256356405]

約数ペア:

[(1, 256356405), (3, 85452135), (5, 51271281), (9, 28484045), (15, 17090427), (45, 5696809), (67, 3826215), (201, 1275405), (335, 765243), (603, 425135), (1005, 255081), (3015, 85027)]