221232020

素因数分解:

$2^2\times 5^1\times {\mathrm{877}}^1\times {\mathrm{12613}}^1$

素因数の和:13499

約数の個数: 24

約数和(自身を含む): 465153864

約数和(自身を除く): 243921844

約数列:

[1, 2, 4, 5, 10, 20, 877, 1754, 3508, 4385, 8770, 12613, 17540, 25226, 50452, 63065, 126130, 252260, 11061601, 22123202, 44246404, 55308005, 110616010, 221232020]

約数ペア:

[(1, 221232020), (2, 110616010), (4, 55308005), (5, 44246404), (10, 22123202), (20, 11061601), (877, 252260), (1754, 126130), (3508, 63065), (4385, 50452), (8770, 25226), (12613, 17540)]