22787180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{87643}}^1$

素因数の和:87665

約数の個数: 24

約数和(自身を含む): 51534672

約数和(自身を除く): 28747492

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 87643, 175286, 350572, 438215, 876430, 1139359, 1752860, 2278718, 4557436, 5696795, 11393590, 22787180]

約数ペア:

[(1, 22787180), (2, 11393590), (4, 5696795), (5, 4557436), (10, 2278718), (13, 1752860), (20, 1139359), (26, 876430), (52, 438215), (65, 350572), (130, 175286), (260, 87643)]