19883320

素因数分解:

$2^3\times 5^1\times {\mathrm{179}}^1\times {\mathrm{2777}}^1$

素因数の和:2967

約数の個数: 32

約数和(自身を含む): 45003600

約数和(自身を除く): 25120280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 179, 358, 716, 895, 1432, 1790, 2777, 3580, 5554, 7160, 11108, 13885, 22216, 27770, 55540, 111080, 497083, 994166, 1988332, 2485415, 3976664, 4970830, 9941660, 19883320]

約数ペア:

[(1, 19883320), (2, 9941660), (4, 4970830), (5, 3976664), (8, 2485415), (10, 1988332), (20, 994166), (40, 497083), (179, 111080), (358, 55540), (716, 27770), (895, 22216), (1432, 13885), (1790, 11108), (2777, 7160), (3580, 5554)]