215941055

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1$

素因数の和:248

約数の個数: 64

約数和(自身を含む): 316141056

約数和(自身を除く): 100200001

約数列:

[1, 5, 11, 17, 41, 43, 55, 85, 131, 187, 205, 215, 451, 473, 655, 697, 731, 935, 1441, 1763, 2227, 2255, 2365, 3485, 3655, 5371, 5633, 7205, 7667, 8041, 8815, 11135, 19393, 24497, 26855, 28165, 29971, 38335, 40205, 59081, 61963, 91307, 95761, 96965, 122485, 149855, 230953, 295405, 309815, 329681, 456535, 478805, 1004377, 1053371, 1154765, 1648405, 2540483, 3926201, 5021885, 5266855, 12702415, 19631005, 43188211, 215941055]

約数ペア:

[(1, 215941055), (5, 43188211), (11, 19631005), (17, 12702415), (41, 5266855), (43, 5021885), (55, 3926201), (85, 2540483), (131, 1648405), (187, 1154765), (205, 1053371), (215, 1004377), (451, 478805), (473, 456535), (655, 329681), (697, 309815), (731, 295405), (935, 230953), (1441, 149855), (1763, 122485), (2227, 96965), (2255, 95761), (2365, 91307), (3485, 61963), (3655, 59081), (5371, 40205), (5633, 38335), (7205, 29971), (7667, 28165), (8041, 26855), (8815, 24497), (11135, 19393)]