129392800

素因数分解:

$2^5\times 5^2\times {\mathrm{161741}}^1$

素因数の和:161761

約数の個数: 36

約数和(自身を含む): 315882126

約数和(自身を除く): 186489326

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 161741, 323482, 646964, 808705, 1293928, 1617410, 2587856, 3234820, 4043525, 5175712, 6469640, 8087050, 12939280, 16174100, 25878560, 32348200, 64696400, 129392800]

約数ペア:

[(1, 129392800), (2, 64696400), (4, 32348200), (5, 25878560), (8, 16174100), (10, 12939280), (16, 8087050), (20, 6469640), (25, 5175712), (32, 4043525), (40, 3234820), (50, 2587856), (80, 1617410), (100, 1293928), (160, 808705), (200, 646964), (400, 323482), (800, 161741)]