19049900

素因数分解:

$2^2\times 5^2\times {\mathrm{197}}^1\times {\mathrm{967}}^1$

素因数の和:1178

約数の個数: 36

約数和(自身を含む): 41591088

約数和(自身を除く): 22541188

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 197, 394, 788, 967, 985, 1934, 1970, 3868, 3940, 4835, 4925, 9670, 9850, 19340, 19700, 24175, 48350, 96700, 190499, 380998, 761996, 952495, 1904990, 3809980, 4762475, 9524950, 19049900]

約数ペア:

[(1, 19049900), (2, 9524950), (4, 4762475), (5, 3809980), (10, 1904990), (20, 952495), (25, 761996), (50, 380998), (100, 190499), (197, 96700), (394, 48350), (788, 24175), (967, 19700), (985, 19340), (1934, 9850), (1970, 9670), (3868, 4925), (3940, 4835)]