18156400

素因数分解:

$2^4\times 5^2\times {\mathrm{19}}^1\times {\mathrm{2389}}^1$

素因数の和:2426

約数の個数: 60

約数和(自身を含む): 45935800

約数和(自身を除く): 27779400

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 50, 76, 80, 95, 100, 152, 190, 200, 304, 380, 400, 475, 760, 950, 1520, 1900, 2389, 3800, 4778, 7600, 9556, 11945, 19112, 23890, 38224, 45391, 47780, 59725, 90782, 95560, 119450, 181564, 191120, 226955, 238900, 363128, 453910, 477800, 726256, 907820, 955600, 1134775, 1815640, 2269550, 3631280, 4539100, 9078200, 18156400]

約数ペア:

[(1, 18156400), (2, 9078200), (4, 4539100), (5, 3631280), (8, 2269550), (10, 1815640), (16, 1134775), (19, 955600), (20, 907820), (25, 726256), (38, 477800), (40, 453910), (50, 363128), (76, 238900), (80, 226955), (95, 191120), (100, 181564), (152, 119450), (190, 95560), (200, 90782), (304, 59725), (380, 47780), (400, 45391), (475, 38224), (760, 23890), (950, 19112), (1520, 11945), (1900, 9556), (2389, 7600), (3800, 4778)]