20512017520

素因数分解:

$2^4\times 5^1\times {\mathrm{13093}}^1\times {\mathrm{19583}}^1$

素因数の和:32689

約数の個数: 40

約数和(自身を含む): 47696518656

約数和(自身を除く): 27184501136

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 13093, 19583, 26186, 39166, 52372, 65465, 78332, 97915, 104744, 130930, 156664, 195830, 209488, 261860, 313328, 391660, 523720, 783320, 1047440, 1566640, 256400219, 512800438, 1025600876, 1282001095, 2051201752, 2564002190, 4102403504, 5128004380, 10256008760, 20512017520]

約数ペア:

[(1, 20512017520), (2, 10256008760), (4, 5128004380), (5, 4102403504), (8, 2564002190), (10, 2051201752), (16, 1282001095), (20, 1025600876), (40, 512800438), (80, 256400219), (13093, 1566640), (19583, 1047440), (26186, 783320), (39166, 523720), (52372, 391660), (65465, 313328), (78332, 261860), (97915, 209488), (104744, 195830), (130930, 156664)]