18197500

素因数分解:

$2^2\times 5^4\times {\mathrm{29}}^1\times {\mathrm{251}}^1$

素因数の和:304

約数の個数: 60

約数和(自身を含む): 41330520

約数和(自身を除く): 23133020

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 50, 58, 100, 116, 125, 145, 250, 251, 290, 500, 502, 580, 625, 725, 1004, 1250, 1255, 1450, 2500, 2510, 2900, 3625, 5020, 6275, 7250, 7279, 12550, 14500, 14558, 18125, 25100, 29116, 31375, 36250, 36395, 62750, 72500, 72790, 125500, 145580, 156875, 181975, 313750, 363950, 627500, 727900, 909875, 1819750, 3639500, 4549375, 9098750, 18197500]

約数ペア:

[(1, 18197500), (2, 9098750), (4, 4549375), (5, 3639500), (10, 1819750), (20, 909875), (25, 727900), (29, 627500), (50, 363950), (58, 313750), (100, 181975), (116, 156875), (125, 145580), (145, 125500), (250, 72790), (251, 72500), (290, 62750), (500, 36395), (502, 36250), (580, 31375), (625, 29116), (725, 25100), (1004, 18125), (1250, 14558), (1255, 14500), (1450, 12550), (2500, 7279), (2510, 7250), (2900, 6275), (3625, 5020)]