85131520

素因数分解:

$2^8\times 5^1\times {\mathrm{66509}}^1$

素因数の和:66530

約数の個数: 36

約数和(自身を含む): 203919660

約数和(自身を除く): 118788140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 66509, 133018, 266036, 332545, 532072, 665090, 1064144, 1330180, 2128288, 2660360, 4256576, 5320720, 8513152, 10641440, 17026304, 21282880, 42565760, 85131520]

約数ペア:

[(1, 85131520), (2, 42565760), (4, 21282880), (5, 17026304), (8, 10641440), (10, 8513152), (16, 5320720), (20, 4256576), (32, 2660360), (40, 2128288), (64, 1330180), (80, 1064144), (128, 665090), (160, 532072), (256, 332545), (320, 266036), (640, 133018), (1280, 66509)]