28391350

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1409}}^1$

素因数の和:1465

約数の個数: 48

約数和(自身を含む): 58746240

約数和(自身を除く): 30354890

約数列:

[1, 2, 5, 10, 13, 25, 26, 31, 50, 62, 65, 130, 155, 310, 325, 403, 650, 775, 806, 1409, 1550, 2015, 2818, 4030, 7045, 10075, 14090, 18317, 20150, 35225, 36634, 43679, 70450, 87358, 91585, 183170, 218395, 436790, 457925, 567827, 915850, 1091975, 1135654, 2183950, 2839135, 5678270, 14195675, 28391350]

約数ペア:

[(1, 28391350), (2, 14195675), (5, 5678270), (10, 2839135), (13, 2183950), (25, 1135654), (26, 1091975), (31, 915850), (50, 567827), (62, 457925), (65, 436790), (130, 218395), (155, 183170), (310, 91585), (325, 87358), (403, 70450), (650, 43679), (775, 36634), (806, 35225), (1409, 20150), (1550, 18317), (2015, 14090), (2818, 10075), (4030, 7045)]