18263420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{683}}^1$

素因数の和:890

約数の個数: 48

約数和(自身を含む): 44126208

約数和(自身を除く): 25862788

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 191, 382, 683, 764, 955, 1337, 1366, 1910, 2674, 2732, 3415, 3820, 4781, 5348, 6685, 6830, 9562, 13370, 13660, 19124, 23905, 26740, 47810, 95620, 130453, 260906, 521812, 652265, 913171, 1304530, 1826342, 2609060, 3652684, 4565855, 9131710, 18263420]

約数ペア:

[(1, 18263420), (2, 9131710), (4, 4565855), (5, 3652684), (7, 2609060), (10, 1826342), (14, 1304530), (20, 913171), (28, 652265), (35, 521812), (70, 260906), (140, 130453), (191, 95620), (382, 47810), (683, 26740), (764, 23905), (955, 19124), (1337, 13660), (1366, 13370), (1910, 9562), (2674, 6830), (2732, 6685), (3415, 5348), (3820, 4781)]