20868830

素因数分解:

$2^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{20261}}^1$

素因数の和:20371

約数の個数: 16

約数和(自身を含む): 37930464

約数和(自身を除く): 17061634

約数列:

[1, 2, 5, 10, 103, 206, 515, 1030, 20261, 40522, 101305, 202610, 2086883, 4173766, 10434415, 20868830]

約数ペア:

[(1, 20868830), (2, 10434415), (5, 4173766), (10, 2086883), (103, 202610), (206, 101305), (515, 40522), (1030, 20261)]