251284815

素因数分解:

$3^3\times 5^1\times {\mathrm{353}}^1\times {\mathrm{5273}}^1$

素因数の和:5640

約数の個数: 32

約数和(自身を含む): 448079040

約数和(自身を除く): 196794225

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 353, 1059, 1765, 3177, 5273, 5295, 9531, 15819, 15885, 26365, 47457, 47655, 79095, 142371, 237285, 711855, 1861369, 5584107, 9306845, 16752321, 27920535, 50256963, 83761605, 251284815]

約数ペア:

[(1, 251284815), (3, 83761605), (5, 50256963), (9, 27920535), (15, 16752321), (27, 9306845), (45, 5584107), (135, 1861369), (353, 711855), (1059, 237285), (1765, 142371), (3177, 79095), (5273, 47655), (5295, 47457), (9531, 26365), (15819, 15885)]