638204548

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{62989}}^1$

素因数の和:63159

約数の個数: 24

約数和(自身を含む): 1190511000

約数和(自身を除く): 552306452

約数列:

[1, 2, 4, 17, 34, 68, 149, 298, 596, 2533, 5066, 10132, 62989, 125978, 251956, 1070813, 2141626, 4283252, 9385361, 18770722, 37541444, 159551137, 319102274, 638204548]

約数ペア:

[(1, 638204548), (2, 319102274), (4, 159551137), (17, 37541444), (34, 18770722), (68, 9385361), (149, 4283252), (298, 2141626), (596, 1070813), (2533, 251956), (5066, 125978), (10132, 62989)]