20668801840

素因数分解:

$2^4\times 5^1\times {\mathrm{258360023}}^1$

素因数の和:258360036

約数の個数: 20

約数和(自身を含む): 48054964464

約数和(自身を除く): 27386162624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 258360023, 516720046, 1033440092, 1291800115, 2066880184, 2583600230, 4133760368, 5167200460, 10334400920, 20668801840]

約数ペア:

[(1, 20668801840), (2, 10334400920), (4, 5167200460), (5, 4133760368), (8, 2583600230), (10, 2066880184), (16, 1291800115), (20, 1033440092), (40, 516720046), (80, 258360023)]