20219920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{36107}}^1$

素因数の和:36127

約数の個数: 40

約数和(自身を含む): 53728704

約数和(自身を除く): 33508784

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 36107, 72214, 144428, 180535, 252749, 288856, 361070, 505498, 577712, 722140, 1010996, 1263745, 1444280, 2021992, 2527490, 2888560, 4043984, 5054980, 10109960, 20219920]

約数ペア:

[(1, 20219920), (2, 10109960), (4, 5054980), (5, 4043984), (7, 2888560), (8, 2527490), (10, 2021992), (14, 1444280), (16, 1263745), (20, 1010996), (28, 722140), (35, 577712), (40, 505498), (56, 361070), (70, 288856), (80, 252749), (112, 180535), (140, 144428), (280, 72214), (560, 36107)]