20400325

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2393}}^1$

素因数の和:2445

約数の個数: 24

約数和(自身を含む): 28498176

約数和(自身を除く): 8097851

約数列:

[1, 5, 11, 25, 31, 55, 155, 275, 341, 775, 1705, 2393, 8525, 11965, 26323, 59825, 74183, 131615, 370915, 658075, 816013, 1854575, 4080065, 20400325]

約数ペア:

[(1, 20400325), (5, 4080065), (11, 1854575), (25, 816013), (31, 658075), (55, 370915), (155, 131615), (275, 74183), (341, 59825), (775, 26323), (1705, 11965), (2393, 8525)]