20921640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{174347}}^1$

素因数の和:174361

約数の個数: 32

約数和(自身を含む): 62765280

約数和(自身を除く): 41843640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 174347, 348694, 523041, 697388, 871735, 1046082, 1394776, 1743470, 2092164, 2615205, 3486940, 4184328, 5230410, 6973880, 10460820, 20921640]

約数ペア:

[(1, 20921640), (2, 10460820), (3, 6973880), (4, 5230410), (5, 4184328), (6, 3486940), (8, 2615205), (10, 2092164), (12, 1743470), (15, 1394776), (20, 1046082), (24, 871735), (30, 697388), (40, 523041), (60, 348694), (120, 174347)]