20649652

素因数分解:

$2^2\times {\mathrm{79}}^1\times {\mathrm{101}}^1\times {\mathrm{647}}^1$

素因数の和:831

約数の個数: 24

約数和(自身を含む): 37013760

約数和(自身を除く): 16364108

約数列:

[1, 2, 4, 79, 101, 158, 202, 316, 404, 647, 1294, 2588, 7979, 15958, 31916, 51113, 65347, 102226, 130694, 204452, 261388, 5162413, 10324826, 20649652]

約数ペア:

[(1, 20649652), (2, 10324826), (4, 5162413), (79, 261388), (101, 204452), (158, 130694), (202, 102226), (316, 65347), (404, 51113), (647, 31916), (1294, 15958), (2588, 7979)]