64643900

素因数分解:

$2^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{22291}}^1$

素因数の和:22334

約数の個数: 36

約数和(自身を含む): 145120920

約数和(自身を除く): 80477020

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 50, 58, 100, 116, 145, 290, 580, 725, 1450, 2900, 22291, 44582, 89164, 111455, 222910, 445820, 557275, 646439, 1114550, 1292878, 2229100, 2585756, 3232195, 6464390, 12928780, 16160975, 32321950, 64643900]

約数ペア:

[(1, 64643900), (2, 32321950), (4, 16160975), (5, 12928780), (10, 6464390), (20, 3232195), (25, 2585756), (29, 2229100), (50, 1292878), (58, 1114550), (100, 646439), (116, 557275), (145, 445820), (290, 222910), (580, 111455), (725, 89164), (1450, 44582), (2900, 22291)]