2518440020

素因数分解:

$2^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{448121}}^1$

素因数の和:448411

約数の個数: 24

約数和(自身を含む): 5307556968

約数和(自身を除く): 2789116948

約数列:

[1, 2, 4, 5, 10, 20, 281, 562, 1124, 1405, 2810, 5620, 448121, 896242, 1792484, 2240605, 4481210, 8962420, 125922001, 251844002, 503688004, 629610005, 1259220010, 2518440020]

約数ペア:

[(1, 2518440020), (2, 1259220010), (4, 629610005), (5, 503688004), (10, 251844002), (20, 125922001), (281, 8962420), (562, 4481210), (1124, 2240605), (1405, 1792484), (2810, 896242), (5620, 448121)]