18623920

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{4751}}^1$

素因数の和:4778

約数の個数: 60

約数和(自身を含む): 50380704

約数和(自身を除く): 31756784

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 4751, 9502, 19004, 23755, 33257, 38008, 47510, 66514, 76016, 95020, 133028, 166285, 190040, 232799, 266056, 332570, 380080, 465598, 532112, 665140, 931196, 1163995, 1330280, 1862392, 2327990, 2660560, 3724784, 4655980, 9311960, 18623920]

約数ペア:

[(1, 18623920), (2, 9311960), (4, 4655980), (5, 3724784), (7, 2660560), (8, 2327990), (10, 1862392), (14, 1330280), (16, 1163995), (20, 931196), (28, 665140), (35, 532112), (40, 465598), (49, 380080), (56, 332570), (70, 266056), (80, 232799), (98, 190040), (112, 166285), (140, 133028), (196, 95020), (245, 76016), (280, 66514), (392, 47510), (490, 38008), (560, 33257), (784, 23755), (980, 19004), (1960, 9502), (3920, 4751)]