20452140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{113623}}^1$

素因数の和:113638

約数の個数: 36

約数和(自身を含む): 62038704

約数和(自身を除く): 41586564

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 113623, 227246, 340869, 454492, 568115, 681738, 1022607, 1136230, 1363476, 1704345, 2045214, 2272460, 3408690, 4090428, 5113035, 6817380, 10226070, 20452140]

約数ペア:

[(1, 20452140), (2, 10226070), (3, 6817380), (4, 5113035), (5, 4090428), (6, 3408690), (9, 2272460), (10, 2045214), (12, 1704345), (15, 1363476), (18, 1136230), (20, 1022607), (30, 681738), (36, 568115), (45, 454492), (60, 340869), (90, 227246), (180, 113623)]