20233555420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{443}}^1\times {\mathrm{13513}}^1$

素因数の和:13991

約数の個数: 72

約数和(自身を含む): 46117660176

約数和(自身を除く): 25884104756

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 443, 676, 845, 886, 1690, 1772, 2215, 3380, 4430, 5759, 8860, 11518, 13513, 23036, 27026, 28795, 54052, 57590, 67565, 74867, 115180, 135130, 149734, 175669, 270260, 299468, 351338, 374335, 702676, 748670, 878345, 1497340, 1756690, 2283697, 3513380, 4567394, 5986259, 9134788, 11418485, 11972518, 22836970, 23945036, 29931295, 45673940, 59862590, 77821367, 119725180, 155642734, 311285468, 389106835, 778213670, 1011677771, 1556427340, 2023355542, 4046711084, 5058388855, 10116777710, 20233555420]

約数ペア:

[(1, 20233555420), (2, 10116777710), (4, 5058388855), (5, 4046711084), (10, 2023355542), (13, 1556427340), (20, 1011677771), (26, 778213670), (52, 389106835), (65, 311285468), (130, 155642734), (169, 119725180), (260, 77821367), (338, 59862590), (443, 45673940), (676, 29931295), (845, 23945036), (886, 22836970), (1690, 11972518), (1772, 11418485), (2215, 9134788), (3380, 5986259), (4430, 4567394), (5759, 3513380), (8860, 2283697), (11518, 1756690), (13513, 1497340), (23036, 878345), (27026, 748670), (28795, 702676), (54052, 374335), (57590, 351338), (67565, 299468), (74867, 270260), (115180, 175669), (135130, 149734)]