213857560

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{109111}}^1$

素因数の和:109136

約数の個数: 48

約数和(自身を含む): 559744560

約数和(自身を除く): 345887000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 109111, 218222, 436444, 545555, 763777, 872888, 1091110, 1527554, 2182220, 3055108, 3818885, 4364440, 5346439, 6110216, 7637770, 10692878, 15275540, 21385756, 26732195, 30551080, 42771512, 53464390, 106928780, 213857560]

約数ペア:

[(1, 213857560), (2, 106928780), (4, 53464390), (5, 42771512), (7, 30551080), (8, 26732195), (10, 21385756), (14, 15275540), (20, 10692878), (28, 7637770), (35, 6110216), (40, 5346439), (49, 4364440), (56, 3818885), (70, 3055108), (98, 2182220), (140, 1527554), (196, 1091110), (245, 872888), (280, 763777), (392, 545555), (490, 436444), (980, 218222), (1960, 109111)]