20741520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{86423}}^1$

素因数の和:86439

約数の個数: 40

約数和(自身を含む): 64299456

約数和(自身を除く): 43557936

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 86423, 172846, 259269, 345692, 432115, 518538, 691384, 864230, 1037076, 1296345, 1382768, 1728460, 2074152, 2592690, 3456920, 4148304, 5185380, 6913840, 10370760, 20741520]

約数ペア:

[(1, 20741520), (2, 10370760), (3, 6913840), (4, 5185380), (5, 4148304), (6, 3456920), (8, 2592690), (10, 2074152), (12, 1728460), (15, 1382768), (16, 1296345), (20, 1037076), (24, 864230), (30, 691384), (40, 518538), (48, 432115), (60, 345692), (80, 259269), (120, 172846), (240, 86423)]