20163779320

素因数分解:

$2^3\times 5^1\times {\mathrm{3557}}^1\times {\mathrm{141719}}^1$

素因数の和:145287

約数の個数: 32

約数和(自身を含む): 45381578400

約数和(自身を除く): 25217799080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3557, 7114, 14228, 17785, 28456, 35570, 71140, 141719, 142280, 283438, 566876, 708595, 1133752, 1417190, 2834380, 5668760, 504094483, 1008188966, 2016377932, 2520472415, 4032755864, 5040944830, 10081889660, 20163779320]

約数ペア:

[(1, 20163779320), (2, 10081889660), (4, 5040944830), (5, 4032755864), (8, 2520472415), (10, 2016377932), (20, 1008188966), (40, 504094483), (3557, 5668760), (7114, 2834380), (14228, 1417190), (17785, 1133752), (28456, 708595), (35570, 566876), (71140, 283438), (141719, 142280)]