13713140

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{1999}}^1$

素因数の和:2029

約数の個数: 48

約数和(自身を含む): 33600000

約数和(自身を除く): 19886860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 1999, 3430, 3998, 6860, 7996, 9995, 13993, 19990, 27986, 39980, 55972, 69965, 97951, 139930, 195902, 279860, 391804, 489755, 685657, 979510, 1371314, 1959020, 2742628, 3428285, 6856570, 13713140]

約数ペア:

[(1, 13713140), (2, 6856570), (4, 3428285), (5, 2742628), (7, 1959020), (10, 1371314), (14, 979510), (20, 685657), (28, 489755), (35, 391804), (49, 279860), (70, 195902), (98, 139930), (140, 97951), (196, 69965), (245, 55972), (343, 39980), (490, 27986), (686, 19990), (980, 13993), (1372, 9995), (1715, 7996), (1999, 6860), (3430, 3998)]