681384535

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{255679}}^1$

素因数の和:255738

約数の個数: 16

約数和(自身を含む): 902039040

約数和(自身を除く): 220654505

約数列:

[1, 5, 13, 41, 65, 205, 533, 2665, 255679, 1278395, 3323827, 10482839, 16619135, 52414195, 136276907, 681384535]

約数ペア:

[(1, 681384535), (5, 136276907), (13, 52414195), (41, 16619135), (65, 10482839), (205, 3323827), (533, 1278395), (2665, 255679)]