18082820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{569}}^1$

素因数の和:812

約数の個数: 48

約数和(自身を含む): 43666560

約数和(自身を除く): 25583740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 227, 454, 569, 908, 1135, 1138, 1589, 2270, 2276, 2845, 3178, 3983, 4540, 5690, 6356, 7945, 7966, 11380, 15890, 15932, 19915, 31780, 39830, 79660, 129163, 258326, 516652, 645815, 904141, 1291630, 1808282, 2583260, 3616564, 4520705, 9041410, 18082820]

約数ペア:

[(1, 18082820), (2, 9041410), (4, 4520705), (5, 3616564), (7, 2583260), (10, 1808282), (14, 1291630), (20, 904141), (28, 645815), (35, 516652), (70, 258326), (140, 129163), (227, 79660), (454, 39830), (569, 31780), (908, 19915), (1135, 15932), (1138, 15890), (1589, 11380), (2270, 7966), (2276, 7945), (2845, 6356), (3178, 5690), (3983, 4540)]