1640253890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{421}}^1\times {\mathrm{35419}}^1$

素因数の和:35858

約数の個数: 32

約数和(自身を含む): 3228603840

約数和(自身を除く): 1588349950

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 421, 842, 2105, 4210, 4631, 9262, 23155, 35419, 46310, 70838, 177095, 354190, 389609, 779218, 1948045, 3896090, 14911399, 29822798, 74556995, 149113990, 164025389, 328050778, 820126945, 1640253890]

約数ペア:

[(1, 1640253890), (2, 820126945), (5, 328050778), (10, 164025389), (11, 149113990), (22, 74556995), (55, 29822798), (110, 14911399), (421, 3896090), (842, 1948045), (2105, 779218), (4210, 389609), (4631, 354190), (9262, 177095), (23155, 70838), (35419, 46310)]