19498120

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{5477}}^1$

素因数の和:5577

約数の個数: 32

約数和(自身を含む): 44371800

約数和(自身を除く): 24873680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 5477, 10954, 21908, 27385, 43816, 54770, 109540, 219080, 487453, 974906, 1949812, 2437265, 3899624, 4874530, 9749060, 19498120]

約数ペア:

[(1, 19498120), (2, 9749060), (4, 4874530), (5, 3899624), (8, 2437265), (10, 1949812), (20, 974906), (40, 487453), (89, 219080), (178, 109540), (356, 54770), (445, 43816), (712, 27385), (890, 21908), (1780, 10954), (3560, 5477)]