20405632

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{12263}}^1$

素因数の和:12290

約数の個数: 32

約数和(自身を含む): 43782480

約数和(自身を除く): 23376848

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 416, 832, 1664, 12263, 24526, 49052, 98104, 159419, 196208, 318838, 392416, 637676, 784832, 1275352, 1569664, 2550704, 5101408, 10202816, 20405632]

約数ペア:

[(1, 20405632), (2, 10202816), (4, 5101408), (8, 2550704), (13, 1569664), (16, 1275352), (26, 784832), (32, 637676), (52, 392416), (64, 318838), (104, 196208), (128, 159419), (208, 98104), (416, 49052), (832, 24526), (1664, 12263)]