202865780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{780253}}^1$

素因数の和:780275

約数の個数: 24

約数和(自身を含む): 458789352

約数和(自身を除く): 255923572

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 780253, 1560506, 3121012, 3901265, 7802530, 10143289, 15605060, 20286578, 40573156, 50716445, 101432890, 202865780]

約数ペア:

[(1, 202865780), (2, 101432890), (4, 50716445), (5, 40573156), (10, 20286578), (13, 15605060), (20, 10143289), (26, 7802530), (52, 3901265), (65, 3121012), (130, 1560506), (260, 780253)]