131738215

素因数分解:

$5^1\times 7^2\times {\mathrm{503}}^1\times {\mathrm{1069}}^1$

素因数の和:1591

約数の個数: 24

約数和(自身を含む): 184433760

約数和(自身を除く): 52695545

約数列:

[1, 5, 7, 35, 49, 245, 503, 1069, 2515, 3521, 5345, 7483, 17605, 24647, 37415, 52381, 123235, 261905, 537707, 2688535, 3763949, 18819745, 26347643, 131738215]

約数ペア:

[(1, 131738215), (5, 26347643), (7, 18819745), (35, 3763949), (49, 2688535), (245, 537707), (503, 261905), (1069, 123235), (2515, 52381), (3521, 37415), (5345, 24647), (7483, 17605)]