496685020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{7993}}^1$

素因数の和:8254

約数の個数: 48

約数和(自身を含む): 1128113280

約数和(自身を除く): 631428260

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 239, 260, 478, 956, 1195, 2390, 3107, 4780, 6214, 7993, 12428, 15535, 15986, 31070, 31972, 39965, 62140, 79930, 103909, 159860, 207818, 415636, 519545, 1039090, 1910327, 2078180, 3820654, 7641308, 9551635, 19103270, 24834251, 38206540, 49668502, 99337004, 124171255, 248342510, 496685020]

約数ペア:

[(1, 496685020), (2, 248342510), (4, 124171255), (5, 99337004), (10, 49668502), (13, 38206540), (20, 24834251), (26, 19103270), (52, 9551635), (65, 7641308), (130, 3820654), (239, 2078180), (260, 1910327), (478, 1039090), (956, 519545), (1195, 415636), (2390, 207818), (3107, 159860), (4780, 103909), (6214, 79930), (7993, 62140), (12428, 39965), (15535, 31972), (15986, 31070)]