22890920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{44021}}^1$

素因数の和:44045

約数の個数: 32

約数和(自身を含む): 55467720

約数和(自身を除く): 32576800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 44021, 88042, 176084, 220105, 352168, 440210, 572273, 880420, 1144546, 1760840, 2289092, 2861365, 4578184, 5722730, 11445460, 22890920]

約数ペア:

[(1, 22890920), (2, 11445460), (4, 5722730), (5, 4578184), (8, 2861365), (10, 2289092), (13, 1760840), (20, 1144546), (26, 880420), (40, 572273), (52, 440210), (65, 352168), (104, 220105), (130, 176084), (260, 88042), (520, 44021)]