20373808

素因数分解:

$2^4\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1999}}^1$

素因数の和:2034

約数の個数: 60

約数和(自身を含む): 49476000

約数和(自身を除く): 29102192

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 49, 52, 56, 91, 98, 104, 112, 182, 196, 208, 364, 392, 637, 728, 784, 1274, 1456, 1999, 2548, 3998, 5096, 7996, 10192, 13993, 15992, 25987, 27986, 31984, 51974, 55972, 97951, 103948, 111944, 181909, 195902, 207896, 223888, 363818, 391804, 415792, 727636, 783608, 1273363, 1455272, 1567216, 2546726, 2910544, 5093452, 10186904, 20373808]

約数ペア:

[(1, 20373808), (2, 10186904), (4, 5093452), (7, 2910544), (8, 2546726), (13, 1567216), (14, 1455272), (16, 1273363), (26, 783608), (28, 727636), (49, 415792), (52, 391804), (56, 363818), (91, 223888), (98, 207896), (104, 195902), (112, 181909), (182, 111944), (196, 103948), (208, 97951), (364, 55972), (392, 51974), (637, 31984), (728, 27986), (784, 25987), (1274, 15992), (1456, 13993), (1999, 10192), (2548, 7996), (3998, 5096)]