18182920

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{9277}}^1$

素因数の和:9302

約数の個数: 48

約数和(自身を含む): 47596140

約数和(自身を除く): 29413220

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 9277, 18554, 37108, 46385, 64939, 74216, 92770, 129878, 185540, 259756, 324695, 371080, 454573, 519512, 649390, 909146, 1298780, 1818292, 2272865, 2597560, 3636584, 4545730, 9091460, 18182920]

約数ペア:

[(1, 18182920), (2, 9091460), (4, 4545730), (5, 3636584), (7, 2597560), (8, 2272865), (10, 1818292), (14, 1298780), (20, 909146), (28, 649390), (35, 519512), (40, 454573), (49, 371080), (56, 324695), (70, 259756), (98, 185540), (140, 129878), (196, 92770), (245, 74216), (280, 64939), (392, 46385), (490, 37108), (980, 18554), (1960, 9277)]