1991238065

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{179}}^1\times {\mathrm{383}}^1$

素因数の和:761

約数の個数: 32

約数和(自身を含む): 2489978880

約数和(自身を除く): 498740815

約数列:

[1, 5, 37, 157, 179, 185, 383, 785, 895, 1915, 5809, 6623, 14171, 28103, 29045, 33115, 60131, 68557, 70855, 140515, 300655, 342785, 1039811, 2224847, 2536609, 5199055, 10763449, 11124235, 12683045, 53817245, 398247613, 1991238065]

約数ペア:

[(1, 1991238065), (5, 398247613), (37, 53817245), (157, 12683045), (179, 11124235), (185, 10763449), (383, 5199055), (785, 2536609), (895, 2224847), (1915, 1039811), (5809, 342785), (6623, 300655), (14171, 140515), (28103, 70855), (29045, 68557), (33115, 60131)]