20432840870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{419}}^1\times {\mathrm{375121}}^1$

素因数の和:375560

約数の個数: 32

約数和(自身を含む): 39702912480

約数和(自身を除く): 19270071610

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 419, 838, 2095, 4190, 5447, 10894, 27235, 54470, 375121, 750242, 1875605, 3751210, 4876573, 9753146, 24382865, 48765730, 157175699, 314351398, 785878495, 1571756990, 2043284087, 4086568174, 10216420435, 20432840870]

約数ペア:

[(1, 20432840870), (2, 10216420435), (5, 4086568174), (10, 2043284087), (13, 1571756990), (26, 785878495), (65, 314351398), (130, 157175699), (419, 48765730), (838, 24382865), (2095, 9753146), (4190, 4876573), (5447, 3751210), (10894, 1875605), (27235, 750242), (54470, 375121)]