215564805

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{1103}}^1$

素因数の和:1258

約数の個数: 48

約数和(自身を含む): 386470656

約数和(自身を除く): 170905851

約数列:

[1, 3, 5, 9, 15, 43, 45, 101, 129, 215, 303, 387, 505, 645, 909, 1103, 1515, 1935, 3309, 4343, 4545, 5515, 9927, 13029, 16545, 21715, 39087, 47429, 49635, 65145, 111403, 142287, 195435, 237145, 334209, 426861, 557015, 711435, 1002627, 1671045, 2134305, 4790329, 5013135, 14370987, 23951645, 43112961, 71854935, 215564805]

約数ペア:

[(1, 215564805), (3, 71854935), (5, 43112961), (9, 23951645), (15, 14370987), (43, 5013135), (45, 4790329), (101, 2134305), (129, 1671045), (215, 1002627), (303, 711435), (387, 557015), (505, 426861), (645, 334209), (909, 237145), (1103, 195435), (1515, 142287), (1935, 111403), (3309, 65145), (4343, 49635), (4545, 47429), (5515, 39087), (9927, 21715), (13029, 16545)]