19039720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{1283}}^1$

素因数の和:1354

約数の個数: 64

約数和(自身を含む): 49921920

約数和(自身を除く): 30882200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 53, 56, 70, 106, 140, 212, 265, 280, 371, 424, 530, 742, 1060, 1283, 1484, 1855, 2120, 2566, 2968, 3710, 5132, 6415, 7420, 8981, 10264, 12830, 14840, 17962, 25660, 35924, 44905, 51320, 67999, 71848, 89810, 135998, 179620, 271996, 339995, 359240, 475993, 543992, 679990, 951986, 1359980, 1903972, 2379965, 2719960, 3807944, 4759930, 9519860, 19039720]

約数ペア:

[(1, 19039720), (2, 9519860), (4, 4759930), (5, 3807944), (7, 2719960), (8, 2379965), (10, 1903972), (14, 1359980), (20, 951986), (28, 679990), (35, 543992), (40, 475993), (53, 359240), (56, 339995), (70, 271996), (106, 179620), (140, 135998), (212, 89810), (265, 71848), (280, 67999), (371, 51320), (424, 44905), (530, 35924), (742, 25660), (1060, 17962), (1283, 14840), (1484, 12830), (1855, 10264), (2120, 8981), (2566, 7420), (2968, 6415), (3710, 5132)]