20406744

素因数分解:

$2^3\times 3^2\times {\mathrm{151}}^1\times {\mathrm{1877}}^1$

素因数の和:2040

約数の個数: 48

約数和(自身を含む): 55663920

約数和(自身を除く): 35257176

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 151, 302, 453, 604, 906, 1208, 1359, 1812, 1877, 2718, 3624, 3754, 5436, 5631, 7508, 10872, 11262, 15016, 16893, 22524, 33786, 45048, 67572, 135144, 283427, 566854, 850281, 1133708, 1700562, 2267416, 2550843, 3401124, 5101686, 6802248, 10203372, 20406744]

約数ペア:

[(1, 20406744), (2, 10203372), (3, 6802248), (4, 5101686), (6, 3401124), (8, 2550843), (9, 2267416), (12, 1700562), (18, 1133708), (24, 850281), (36, 566854), (72, 283427), (151, 135144), (302, 67572), (453, 45048), (604, 33786), (906, 22524), (1208, 16893), (1359, 15016), (1812, 11262), (1877, 10872), (2718, 7508), (3624, 5631), (3754, 5436)]