207309020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{193}}^1\times {\mathrm{1249}}^1$

素因数の和:1494

約数の個数: 48

約数和(自身を含む): 448140000

約数和(自身を除く): 240830980

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 193, 215, 386, 430, 772, 860, 965, 1249, 1930, 2498, 3860, 4996, 6245, 8299, 12490, 16598, 24980, 33196, 41495, 53707, 82990, 107414, 165980, 214828, 241057, 268535, 482114, 537070, 964228, 1074140, 1205285, 2410570, 4821140, 10365451, 20730902, 41461804, 51827255, 103654510, 207309020]

約数ペア:

[(1, 207309020), (2, 103654510), (4, 51827255), (5, 41461804), (10, 20730902), (20, 10365451), (43, 4821140), (86, 2410570), (172, 1205285), (193, 1074140), (215, 964228), (386, 537070), (430, 482114), (772, 268535), (860, 241057), (965, 214828), (1249, 165980), (1930, 107414), (2498, 82990), (3860, 53707), (4996, 41495), (6245, 33196), (8299, 24980), (12490, 16598)]