20211540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{229}}^1\times {\mathrm{1471}}^1$

素因数の和:1712

約数の個数: 48

約数和(自身を含む): 56878080

約数和(自身を除く): 36666540

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 229, 458, 687, 916, 1145, 1374, 1471, 2290, 2748, 2942, 3435, 4413, 4580, 5884, 6870, 7355, 8826, 13740, 14710, 17652, 22065, 29420, 44130, 88260, 336859, 673718, 1010577, 1347436, 1684295, 2021154, 3368590, 4042308, 5052885, 6737180, 10105770, 20211540]

約数ペア:

[(1, 20211540), (2, 10105770), (3, 6737180), (4, 5052885), (5, 4042308), (6, 3368590), (10, 2021154), (12, 1684295), (15, 1347436), (20, 1010577), (30, 673718), (60, 336859), (229, 88260), (458, 44130), (687, 29420), (916, 22065), (1145, 17652), (1374, 14710), (1471, 13740), (2290, 8826), (2748, 7355), (2942, 6870), (3435, 5884), (4413, 4580)]