18087860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{18457}}^1$

素因数の和:18480

約数の個数: 36

約数和(自身を含む): 44188452

約数和(自身を除く): 26100592

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 18457, 36914, 73828, 92285, 129199, 184570, 258398, 369140, 516796, 645995, 904393, 1291990, 1808786, 2583980, 3617572, 4521965, 9043930, 18087860]

約数ペア:

[(1, 18087860), (2, 9043930), (4, 4521965), (5, 3617572), (7, 2583980), (10, 1808786), (14, 1291990), (20, 904393), (28, 645995), (35, 516796), (49, 369140), (70, 258398), (98, 184570), (140, 129199), (196, 92285), (245, 73828), (490, 36914), (980, 18457)]