20297650

素因数分解:

$2^1\times 5^2\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{83}}^1$

素因数の和:235

約数の個数: 48

約数和(自身を含む): 39309984

約数和(自身を除く): 19012334

約数列:

[1, 2, 5, 10, 25, 50, 67, 73, 83, 134, 146, 166, 335, 365, 415, 670, 730, 830, 1675, 1825, 2075, 3350, 3650, 4150, 4891, 5561, 6059, 9782, 11122, 12118, 24455, 27805, 30295, 48910, 55610, 60590, 122275, 139025, 151475, 244550, 278050, 302950, 405953, 811906, 2029765, 4059530, 10148825, 20297650]

約数ペア:

[(1, 20297650), (2, 10148825), (5, 4059530), (10, 2029765), (25, 811906), (50, 405953), (67, 302950), (73, 278050), (83, 244550), (134, 151475), (146, 139025), (166, 122275), (335, 60590), (365, 55610), (415, 48910), (670, 30295), (730, 27805), (830, 24455), (1675, 12118), (1825, 11122), (2075, 9782), (3350, 6059), (3650, 5561), (4150, 4891)]