20315580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{547}}^1\times {\mathrm{619}}^1$

素因数の和:1178

約数の個数: 48

約数和(自身を含む): 57079680

約数和(自身を除く): 36764100

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 547, 619, 1094, 1238, 1641, 1857, 2188, 2476, 2735, 3095, 3282, 3714, 5470, 6190, 6564, 7428, 8205, 9285, 10940, 12380, 16410, 18570, 32820, 37140, 338593, 677186, 1015779, 1354372, 1692965, 2031558, 3385930, 4063116, 5078895, 6771860, 10157790, 20315580]

約数ペア:

[(1, 20315580), (2, 10157790), (3, 6771860), (4, 5078895), (5, 4063116), (6, 3385930), (10, 2031558), (12, 1692965), (15, 1354372), (20, 1015779), (30, 677186), (60, 338593), (547, 37140), (619, 32820), (1094, 18570), (1238, 16410), (1641, 12380), (1857, 10940), (2188, 9285), (2476, 8205), (2735, 7428), (3095, 6564), (3282, 6190), (3714, 5470)]