64397800

素因数分解:

$2^3\times 5^2\times {\mathrm{149}}^1\times {\mathrm{2161}}^1$

素因数の和:2326

約数の個数: 48

約数和(自身を含む): 150799500

約数和(自身を除く): 86401700

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 149, 200, 298, 596, 745, 1192, 1490, 2161, 2980, 3725, 4322, 5960, 7450, 8644, 10805, 14900, 17288, 21610, 29800, 43220, 54025, 86440, 108050, 216100, 321989, 432200, 643978, 1287956, 1609945, 2575912, 3219890, 6439780, 8049725, 12879560, 16099450, 32198900, 64397800]

約数ペア:

[(1, 64397800), (2, 32198900), (4, 16099450), (5, 12879560), (8, 8049725), (10, 6439780), (20, 3219890), (25, 2575912), (40, 1609945), (50, 1287956), (100, 643978), (149, 432200), (200, 321989), (298, 216100), (596, 108050), (745, 86440), (1192, 54025), (1490, 43220), (2161, 29800), (2980, 21610), (3725, 17288), (4322, 14900), (5960, 10805), (7450, 8644)]