18731904972820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{72045788357}}^1$

素因数の和:72045788379

約数の個数: 24

約数和(自身を含む): 42362923554504

約数和(自身を除く): 23631018581684

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 72045788357, 144091576714, 288183153428, 360228941785, 720457883570, 936595248641, 1440915767140, 1873190497282, 3746380994564, 4682976243205, 9365952486410, 18731904972820]

約数ペア:

[(1, 18731904972820), (2, 9365952486410), (4, 4682976243205), (5, 3746380994564), (10, 1873190497282), (13, 1440915767140), (20, 936595248641), (26, 720457883570), (52, 360228941785), (65, 288183153428), (130, 144091576714), (260, 72045788357)]