20252920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{16333}}^1$

素因数の和:16375

約数の個数: 32

約数和(自身を含む): 47041920

約数和(自身を除く): 26789000

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 16333, 32666, 65332, 81665, 130664, 163330, 326660, 506323, 653320, 1012646, 2025292, 2531615, 4050584, 5063230, 10126460, 20252920]

約数ペア:

[(1, 20252920), (2, 10126460), (4, 5063230), (5, 4050584), (8, 2531615), (10, 2025292), (20, 1012646), (31, 653320), (40, 506323), (62, 326660), (124, 163330), (155, 130664), (248, 81665), (310, 65332), (620, 32666), (1240, 16333)]