205430080

素因数分解:

$2^6\times 5^1\times {\mathrm{641969}}^1$

素因数の和:641986

約数の個数: 28

約数和(自身を含む): 489181140

約数和(自身を除く): 283751060

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 641969, 1283938, 2567876, 3209845, 5135752, 6419690, 10271504, 12839380, 20543008, 25678760, 41086016, 51357520, 102715040, 205430080]

約数ペア:

[(1, 205430080), (2, 102715040), (4, 51357520), (5, 41086016), (8, 25678760), (10, 20543008), (16, 12839380), (20, 10271504), (32, 6419690), (40, 5135752), (64, 3209845), (80, 2567876), (160, 1283938), (320, 641969)]