644146132

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1210801}}^1$

素因数の和:1210831

約数の個数: 24

約数和(自身を含む): 1356098240

約数和(自身を除く): 711952108

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 1210801, 2421602, 4843204, 8475607, 16951214, 23005219, 33902428, 46010438, 92020876, 161036533, 322073066, 644146132]

約数ペア:

[(1, 644146132), (2, 322073066), (4, 161036533), (7, 92020876), (14, 46010438), (19, 33902428), (28, 23005219), (38, 16951214), (76, 8475607), (133, 4843204), (266, 2421602), (532, 1210801)]