142270720

素因数分解:

$2^8\times 5^1\times {\mathrm{111149}}^1$

素因数の和:111170

約数の個数: 36

約数和(自身を含む): 340785900

約数和(自身を除く): 198515180

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 111149, 222298, 444596, 555745, 889192, 1111490, 1778384, 2222980, 3556768, 4445960, 7113536, 8891920, 14227072, 17783840, 28454144, 35567680, 71135360, 142270720]

約数ペア:

[(1, 142270720), (2, 71135360), (4, 35567680), (5, 28454144), (8, 17783840), (10, 14227072), (16, 8891920), (20, 7113536), (32, 4445960), (40, 3556768), (64, 2222980), (80, 1778384), (128, 1111490), (160, 889192), (256, 555745), (320, 444596), (640, 222298), (1280, 111149)]