31780565

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{4201}}^1$

素因数の和:4312

約数の個数: 16

約数和(自身を含む): 40843440

約数和(自身を除く): 9062875

約数列:

[1, 5, 17, 85, 89, 445, 1513, 4201, 7565, 21005, 71417, 357085, 373889, 1869445, 6356113, 31780565]

約数ペア:

[(1, 31780565), (5, 6356113), (17, 1869445), (85, 373889), (89, 357085), (445, 71417), (1513, 21005), (4201, 7565)]