19191620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^2\times {\mathrm{163}}^1$

素因数の和:237

約数の個数: 72

約数和(自身を含む): 47995584

約数和(自身を除く): 28803964

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 163, 203, 290, 326, 406, 580, 652, 812, 815, 841, 1015, 1141, 1630, 1682, 2030, 2282, 3260, 3364, 4060, 4205, 4564, 4727, 5705, 5887, 8410, 9454, 11410, 11774, 16820, 18908, 22820, 23548, 23635, 29435, 33089, 47270, 58870, 66178, 94540, 117740, 132356, 137083, 165445, 274166, 330890, 548332, 661780, 685415, 959581, 1370830, 1919162, 2741660, 3838324, 4797905, 9595810, 19191620]

約数ペア:

[(1, 19191620), (2, 9595810), (4, 4797905), (5, 3838324), (7, 2741660), (10, 1919162), (14, 1370830), (20, 959581), (28, 685415), (29, 661780), (35, 548332), (58, 330890), (70, 274166), (116, 165445), (140, 137083), (145, 132356), (163, 117740), (203, 94540), (290, 66178), (326, 58870), (406, 47270), (580, 33089), (652, 29435), (812, 23635), (815, 23548), (841, 22820), (1015, 18908), (1141, 16820), (1630, 11774), (1682, 11410), (2030, 9454), (2282, 8410), (3260, 5887), (3364, 5705), (4060, 4727), (4205, 4564)]