20344040

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{3659}}^1$

素因数の和:3809

約数の個数: 32

約数和(自身を含む): 46116000

約数和(自身を除く): 25771960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 3659, 5560, 7318, 14636, 18295, 29272, 36590, 73180, 146360, 508601, 1017202, 2034404, 2543005, 4068808, 5086010, 10172020, 20344040]

約数ペア:

[(1, 20344040), (2, 10172020), (4, 5086010), (5, 4068808), (8, 2543005), (10, 2034404), (20, 1017202), (40, 508601), (139, 146360), (278, 73180), (556, 36590), (695, 29272), (1112, 18295), (1390, 14636), (2780, 7318), (3659, 5560)]