839420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^2$

素因数の和:122

約数の個数: 36

約数和(自身を含む): 1895880

約数和(自身を除く): 1056460

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 47, 76, 94, 95, 188, 190, 235, 380, 470, 893, 940, 1786, 2209, 3572, 4418, 4465, 8836, 8930, 11045, 17860, 22090, 41971, 44180, 83942, 167884, 209855, 419710, 839420]

約数ペア:

[(1, 839420), (2, 419710), (4, 209855), (5, 167884), (10, 83942), (19, 44180), (20, 41971), (38, 22090), (47, 17860), (76, 11045), (94, 8930), (95, 8836), (188, 4465), (190, 4418), (235, 3572), (380, 2209), (470, 1786), (893, 940)]