201816940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{776219}}^1$

素因数の和:776241

約数の個数: 24

約数和(自身を含む): 456417360

約数和(自身を除く): 254600420

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 776219, 1552438, 3104876, 3881095, 7762190, 10090847, 15524380, 20181694, 40363388, 50454235, 100908470, 201816940]

約数ペア:

[(1, 201816940), (2, 100908470), (4, 50454235), (5, 40363388), (10, 20181694), (13, 15524380), (20, 10090847), (26, 7762190), (52, 3881095), (65, 3104876), (130, 1552438), (260, 776219)]