88721320

素因数分解:

$2^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{12821}}^1$

素因数の和:13005

約数の個数: 32

約数和(自身を含む): 200792520

約数和(自身を除く): 112071200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 173, 346, 692, 865, 1384, 1730, 3460, 6920, 12821, 25642, 51284, 64105, 102568, 128210, 256420, 512840, 2218033, 4436066, 8872132, 11090165, 17744264, 22180330, 44360660, 88721320]

約数ペア:

[(1, 88721320), (2, 44360660), (4, 22180330), (5, 17744264), (8, 11090165), (10, 8872132), (20, 4436066), (40, 2218033), (173, 512840), (346, 256420), (692, 128210), (865, 102568), (1384, 64105), (1730, 51284), (3460, 25642), (6920, 12821)]