12743920

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{3251}}^1$

素因数の和:3278

約数の個数: 60

約数和(自身を含む): 34477704

約数和(自身を除く): 21733784

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3251, 3920, 6502, 13004, 16255, 22757, 26008, 32510, 45514, 52016, 65020, 91028, 113785, 130040, 159299, 182056, 227570, 260080, 318598, 364112, 455140, 637196, 796495, 910280, 1274392, 1592990, 1820560, 2548784, 3185980, 6371960, 12743920]

約数ペア:

[(1, 12743920), (2, 6371960), (4, 3185980), (5, 2548784), (7, 1820560), (8, 1592990), (10, 1274392), (14, 910280), (16, 796495), (20, 637196), (28, 455140), (35, 364112), (40, 318598), (49, 260080), (56, 227570), (70, 182056), (80, 159299), (98, 130040), (112, 113785), (140, 91028), (196, 65020), (245, 52016), (280, 45514), (392, 32510), (490, 26008), (560, 22757), (784, 16255), (980, 13004), (1960, 6502), (3251, 3920)]