181900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{107}}^1$

素因数の和:138

約数の個数: 36

約数和(自身を含む): 421848

約数和(自身を除く): 239948

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 107, 170, 214, 340, 425, 428, 535, 850, 1070, 1700, 1819, 2140, 2675, 3638, 5350, 7276, 9095, 10700, 18190, 36380, 45475, 90950, 181900]

約数ペア:

[(1, 181900), (2, 90950), (4, 45475), (5, 36380), (10, 18190), (17, 10700), (20, 9095), (25, 7276), (34, 5350), (50, 3638), (68, 2675), (85, 2140), (100, 1819), (107, 1700), (170, 1070), (214, 850), (340, 535), (425, 428)]