291207215

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{113}}^1\times {\mathrm{967}}^1$

素因数の和:1139

約数の個数: 32

約数和(自身を含む): 389321856

約数和(自身を除く): 98114641

約数列:

[1, 5, 13, 41, 65, 113, 205, 533, 565, 967, 1469, 2665, 4633, 4835, 7345, 12571, 23165, 39647, 60229, 62855, 109271, 198235, 301145, 515411, 546355, 1420523, 2577055, 4480111, 7102615, 22400555, 58241443, 291207215]

約数ペア:

[(1, 291207215), (5, 58241443), (13, 22400555), (41, 7102615), (65, 4480111), (113, 2577055), (205, 1420523), (533, 546355), (565, 515411), (967, 301145), (1469, 198235), (2665, 109271), (4633, 62855), (4835, 60229), (7345, 39647), (12571, 23165)]