19902920

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29269}}^1$

素因数の和:29297

約数の個数: 32

約数和(自身を含む): 47417400

約数和(自身を除く): 27514480

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 29269, 58538, 117076, 146345, 234152, 292690, 497573, 585380, 995146, 1170760, 1990292, 2487865, 3980584, 4975730, 9951460, 19902920]

約数ペア:

[(1, 19902920), (2, 9951460), (4, 4975730), (5, 3980584), (8, 2487865), (10, 1990292), (17, 1170760), (20, 995146), (34, 585380), (40, 497573), (68, 292690), (85, 234152), (136, 146345), (170, 117076), (340, 58538), (680, 29269)]