20531750

素因数分解:

$2^1\times 5^3\times {\mathrm{17}}^1\times {\mathrm{4831}}^1$

素因数の和:4865

約数の個数: 32

約数和(自身を含む): 40704768

約数和(自身を除く): 20173018

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 85, 125, 170, 250, 425, 850, 2125, 4250, 4831, 9662, 24155, 48310, 82127, 120775, 164254, 241550, 410635, 603875, 821270, 1207750, 2053175, 4106350, 10265875, 20531750]

約数ペア:

[(1, 20531750), (2, 10265875), (5, 4106350), (10, 2053175), (17, 1207750), (25, 821270), (34, 603875), (50, 410635), (85, 241550), (125, 164254), (170, 120775), (250, 82127), (425, 48310), (850, 24155), (2125, 9662), (4250, 4831)]