68261990

素因数分解:

$2^1\times 5^1\times {\mathrm{509}}^1\times {\mathrm{13411}}^1$

素因数の和:13927

約数の個数: 16

約数和(自身を含む): 123122160

約数和(自身を除く): 54860170

約数列:

[1, 2, 5, 10, 509, 1018, 2545, 5090, 13411, 26822, 67055, 134110, 6826199, 13652398, 34130995, 68261990]

約数ペア:

[(1, 68261990), (2, 34130995), (5, 13652398), (10, 6826199), (509, 134110), (1018, 67055), (2545, 26822), (5090, 13411)]