20180498440

素因数分解:

$2^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{2916257}}^1$

素因数の和:2916441

約数の個数: 32

約数和(自身を含む): 45668600280

約数和(自身を除く): 25488101840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 173, 346, 692, 865, 1384, 1730, 3460, 6920, 2916257, 5832514, 11665028, 14581285, 23330056, 29162570, 58325140, 116650280, 504512461, 1009024922, 2018049844, 2522562305, 4036099688, 5045124610, 10090249220, 20180498440]

約数ペア:

[(1, 20180498440), (2, 10090249220), (4, 5045124610), (5, 4036099688), (8, 2522562305), (10, 2018049844), (20, 1009024922), (40, 504512461), (173, 116650280), (346, 58325140), (692, 29162570), (865, 23330056), (1384, 14581285), (1730, 11665028), (3460, 5832514), (6920, 2916257)]