31385660

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{173}}^1\times {\mathrm{193}}^1$

素因数の和:422

約数の個数: 48

約数和(自身を含む): 68052096

約数和(自身を除く): 36666436

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 173, 188, 193, 235, 346, 386, 470, 692, 772, 865, 940, 965, 1730, 1930, 3460, 3860, 8131, 9071, 16262, 18142, 32524, 33389, 36284, 40655, 45355, 66778, 81310, 90710, 133556, 162620, 166945, 181420, 333890, 667780, 1569283, 3138566, 6277132, 7846415, 15692830, 31385660]

約数ペア:

[(1, 31385660), (2, 15692830), (4, 7846415), (5, 6277132), (10, 3138566), (20, 1569283), (47, 667780), (94, 333890), (173, 181420), (188, 166945), (193, 162620), (235, 133556), (346, 90710), (386, 81310), (470, 66778), (692, 45355), (772, 40655), (865, 36284), (940, 33389), (965, 32524), (1730, 18142), (1930, 16262), (3460, 9071), (3860, 8131)]