204940160

素因数分解:

$2^7\times 5^1\times {\mathrm{320219}}^1$

素因数の和:320238

約数の個数: 32

約数和(自身を含む): 489936600

約数和(自身を除く): 284996440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 320219, 640438, 1280876, 1601095, 2561752, 3202190, 5123504, 6404380, 10247008, 12808760, 20494016, 25617520, 40988032, 51235040, 102470080, 204940160]

約数ペア:

[(1, 204940160), (2, 102470080), (4, 51235040), (5, 40988032), (8, 25617520), (10, 20494016), (16, 12808760), (20, 10247008), (32, 6404380), (40, 5123504), (64, 3202190), (80, 2561752), (128, 1601095), (160, 1280876), (320, 640438), (640, 320219)]