217465780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^2\times {\mathrm{1847}}^1$

素因数の和:1921

約数の個数: 72

約数和(自身を含む): 540828288

約数和(自身を除く): 323362508

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 841, 1015, 1682, 1847, 2030, 3364, 3694, 4060, 4205, 5887, 7388, 8410, 9235, 11774, 12929, 16820, 18470, 23548, 25858, 29435, 36940, 51716, 53563, 58870, 64645, 107126, 117740, 129290, 214252, 258580, 267815, 374941, 535630, 749882, 1071260, 1499764, 1553327, 1874705, 3106654, 3749410, 6213308, 7498820, 7766635, 10873289, 15533270, 21746578, 31066540, 43493156, 54366445, 108732890, 217465780]

約数ペア:

[(1, 217465780), (2, 108732890), (4, 54366445), (5, 43493156), (7, 31066540), (10, 21746578), (14, 15533270), (20, 10873289), (28, 7766635), (29, 7498820), (35, 6213308), (58, 3749410), (70, 3106654), (116, 1874705), (140, 1553327), (145, 1499764), (203, 1071260), (290, 749882), (406, 535630), (580, 374941), (812, 267815), (841, 258580), (1015, 214252), (1682, 129290), (1847, 117740), (2030, 107126), (3364, 64645), (3694, 58870), (4060, 53563), (4205, 51716), (5887, 36940), (7388, 29435), (8410, 25858), (9235, 23548), (11774, 18470), (12929, 16820)]