20744410

素因数分解:

$2^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1\times {\mathrm{181}}^1$

素因数の和:418

約数の個数: 32

約数和(自身を含む): 38302992

約数和(自身を除く): 17558582

約数列:

[1, 2, 5, 10, 73, 146, 157, 181, 314, 362, 365, 730, 785, 905, 1570, 1810, 11461, 13213, 22922, 26426, 28417, 56834, 57305, 66065, 114610, 132130, 142085, 284170, 2074441, 4148882, 10372205, 20744410]

約数ペア:

[(1, 20744410), (2, 10372205), (5, 4148882), (10, 2074441), (73, 284170), (146, 142085), (157, 132130), (181, 114610), (314, 66065), (362, 57305), (365, 56834), (730, 28417), (785, 26426), (905, 22922), (1570, 13213), (1810, 11461)]