30420748

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{21067}}^1$

素因数の和:21109

約数の個数: 18

約数和(自身を含む): 56188356

約数和(自身を除く): 25767608

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 21067, 42134, 84268, 400273, 800546, 1601092, 7605187, 15210374, 30420748]

約数ペア:

[(1, 30420748), (2, 15210374), (4, 7605187), (19, 1601092), (38, 800546), (76, 400273), (361, 84268), (722, 42134), (1444, 21067)]