215710820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{829657}}^1$

素因数の和:829679

約数の個数: 24

約数和(自身を含む): 487838904

約数和(自身を除く): 272128084

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 829657, 1659314, 3318628, 4148285, 8296570, 10785541, 16593140, 21571082, 43142164, 53927705, 107855410, 215710820]

約数ペア:

[(1, 215710820), (2, 107855410), (4, 53927705), (5, 43142164), (10, 21571082), (13, 16593140), (20, 10785541), (26, 8296570), (52, 4148285), (65, 3318628), (130, 1659314), (260, 829657)]