19119920

素因数分解:

$2^4\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1201}}^1$

素因数の和:1413

約数の個数: 40

約数和(自身を含む): 44714400

約数和(自身を除く): 25594480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 199, 398, 796, 995, 1201, 1592, 1990, 2402, 3184, 3980, 4804, 6005, 7960, 9608, 12010, 15920, 19216, 24020, 48040, 96080, 238999, 477998, 955996, 1194995, 1911992, 2389990, 3823984, 4779980, 9559960, 19119920]

約数ペア:

[(1, 19119920), (2, 9559960), (4, 4779980), (5, 3823984), (8, 2389990), (10, 1911992), (16, 1194995), (20, 955996), (40, 477998), (80, 238999), (199, 96080), (398, 48040), (796, 24020), (995, 19216), (1201, 15920), (1592, 12010), (1990, 9608), (2402, 7960), (3184, 6005), (3980, 4804)]