19659920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{35107}}^1$

素因数の和:35127

約数の個数: 40

約数和(自身を含む): 52240704

約数和(自身を除く): 32580784

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 35107, 70214, 140428, 175535, 245749, 280856, 351070, 491498, 561712, 702140, 982996, 1228745, 1404280, 1965992, 2457490, 2808560, 3931984, 4914980, 9829960, 19659920]

約数ペア:

[(1, 19659920), (2, 9829960), (4, 4914980), (5, 3931984), (7, 2808560), (8, 2457490), (10, 1965992), (14, 1404280), (16, 1228745), (20, 982996), (28, 702140), (35, 561712), (40, 491498), (56, 351070), (70, 280856), (80, 245749), (112, 175535), (140, 140428), (280, 70214), (560, 35107)]