645881379

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{311}}^1$

素因数の和:488

約数の個数: 64

約数和(自身を含む): 1046642688

約数和(自身を除く): 400761309

約数列:

[1, 3, 11, 13, 33, 39, 47, 103, 141, 143, 309, 311, 429, 517, 611, 933, 1133, 1339, 1551, 1833, 3399, 3421, 4017, 4043, 4841, 6721, 10263, 12129, 14523, 14617, 14729, 20163, 32033, 43851, 44187, 44473, 53251, 62933, 96099, 133419, 159753, 160787, 188799, 190021, 352363, 416429, 482361, 570063, 692263, 1057089, 1249287, 1505551, 2076789, 2090231, 4516653, 4580719, 6270693, 13742157, 16561061, 19572163, 49683183, 58716489, 215293793, 645881379]

約数ペア:

[(1, 645881379), (3, 215293793), (11, 58716489), (13, 49683183), (33, 19572163), (39, 16561061), (47, 13742157), (103, 6270693), (141, 4580719), (143, 4516653), (309, 2090231), (311, 2076789), (429, 1505551), (517, 1249287), (611, 1057089), (933, 692263), (1133, 570063), (1339, 482361), (1551, 416429), (1833, 352363), (3399, 190021), (3421, 188799), (4017, 160787), (4043, 159753), (4841, 133419), (6721, 96099), (10263, 62933), (12129, 53251), (14523, 44473), (14617, 44187), (14729, 43851), (20163, 32033)]