638961824

素因数分解:

$2^5\times {\mathrm{61}}^1\times {\mathrm{327337}}^1$

素因数の和:327408

約数の個数: 24

約数和(自身を含む): 1278582228

約数和(自身を除く): 639620404

約数列:

[1, 2, 4, 8, 16, 32, 61, 122, 244, 488, 976, 1952, 327337, 654674, 1309348, 2618696, 5237392, 10474784, 19967557, 39935114, 79870228, 159740456, 319480912, 638961824]

約数ペア:

[(1, 638961824), (2, 319480912), (4, 159740456), (8, 79870228), (16, 39935114), (32, 19967557), (61, 10474784), (122, 5237392), (244, 2618696), (488, 1309348), (976, 654674), (1952, 327337)]