127681580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{491083}}^1$

素因数の和:491105

約数の個数: 24

約数和(自身を含む): 288757392

約数和(自身を除く): 161075812

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 491083, 982166, 1964332, 2455415, 4910830, 6384079, 9821660, 12768158, 25536316, 31920395, 63840790, 127681580]

約数ペア:

[(1, 127681580), (2, 63840790), (4, 31920395), (5, 25536316), (10, 12768158), (13, 9821660), (20, 6384079), (26, 4910830), (52, 2455415), (65, 1964332), (130, 982166), (260, 491083)]