19680350

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{12697}}^1$

素因数の和:12740

約数の個数: 24

約数和(自身を含む): 37789248

約数和(自身を除く): 18108898

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 155, 310, 775, 1550, 12697, 25394, 63485, 126970, 317425, 393607, 634850, 787214, 1968035, 3936070, 9840175, 19680350]

約数ペア:

[(1, 19680350), (2, 9840175), (5, 3936070), (10, 1968035), (25, 787214), (31, 634850), (50, 393607), (62, 317425), (155, 126970), (310, 63485), (775, 25394), (1550, 12697)]