280001583

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{541}}^1\times {\mathrm{661}}^1$

素因数の和:1240

約数の個数: 32

約数和(自身を含む): 430564800

約数和(自身を除く): 150563217

約数列:

[1, 3, 9, 27, 29, 87, 261, 541, 661, 783, 1623, 1983, 4869, 5949, 14607, 15689, 17847, 19169, 47067, 57507, 141201, 172521, 357601, 423603, 517563, 1072803, 3218409, 9655227, 10370429, 31111287, 93333861, 280001583]

約数ペア:

[(1, 280001583), (3, 93333861), (9, 31111287), (27, 10370429), (29, 9655227), (87, 3218409), (261, 1072803), (541, 517563), (661, 423603), (783, 357601), (1623, 172521), (1983, 141201), (4869, 57507), (5949, 47067), (14607, 19169), (15689, 17847)]