2019447775

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{22259}}^1$

素因数の和:22479

約数の個数: 24

約数和(自身を含む): 2649830400

約数和(自身を除く): 630382625

約数列:

[1, 5, 19, 25, 95, 191, 475, 955, 3629, 4775, 18145, 22259, 90725, 111295, 422921, 556475, 2114605, 4251469, 10573025, 21257345, 80777911, 106286725, 403889555, 2019447775]

約数ペア:

[(1, 2019447775), (5, 403889555), (19, 106286725), (25, 80777911), (95, 21257345), (191, 10573025), (475, 4251469), (955, 2114605), (3629, 556475), (4775, 422921), (18145, 111295), (22259, 90725)]