20203760

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{3557}}^1$

素因数の和:3641

約数の個数: 40

約数和(自身を含む): 47648736

約数和(自身を除く): 27444976

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 3557, 5680, 7114, 14228, 17785, 28456, 35570, 56912, 71140, 142280, 252547, 284560, 505094, 1010188, 1262735, 2020376, 2525470, 4040752, 5050940, 10101880, 20203760]

約数ペア:

[(1, 20203760), (2, 10101880), (4, 5050940), (5, 4040752), (8, 2525470), (10, 2020376), (16, 1262735), (20, 1010188), (40, 505094), (71, 284560), (80, 252547), (142, 142280), (284, 71140), (355, 56912), (568, 35570), (710, 28456), (1136, 17785), (1420, 14228), (2840, 7114), (3557, 5680)]