20674040

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{30403}}^1$

素因数の和:30431

約数の個数: 32

約数和(自身を含む): 49254480

約数和(自身を除く): 28580440

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 30403, 60806, 121612, 152015, 243224, 304030, 516851, 608060, 1033702, 1216120, 2067404, 2584255, 4134808, 5168510, 10337020, 20674040]

約数ペア:

[(1, 20674040), (2, 10337020), (4, 5168510), (5, 4134808), (8, 2584255), (10, 2067404), (17, 1216120), (20, 1033702), (34, 608060), (40, 516851), (68, 304030), (85, 243224), (136, 152015), (170, 121612), (340, 60806), (680, 30403)]