138722920

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{10111}}^1$

素因数の和:10143

約数の個数: 64

約数和(自身を含む): 364032000

約数和(自身を除く): 225309080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 343, 392, 490, 686, 980, 1372, 1715, 1960, 2744, 3430, 6860, 10111, 13720, 20222, 40444, 50555, 70777, 80888, 101110, 141554, 202220, 283108, 353885, 404440, 495439, 566216, 707770, 990878, 1415540, 1981756, 2477195, 2831080, 3468073, 3963512, 4954390, 6936146, 9908780, 13872292, 17340365, 19817560, 27744584, 34680730, 69361460, 138722920]

約数ペア:

[(1, 138722920), (2, 69361460), (4, 34680730), (5, 27744584), (7, 19817560), (8, 17340365), (10, 13872292), (14, 9908780), (20, 6936146), (28, 4954390), (35, 3963512), (40, 3468073), (49, 2831080), (56, 2477195), (70, 1981756), (98, 1415540), (140, 990878), (196, 707770), (245, 566216), (280, 495439), (343, 404440), (392, 353885), (490, 283108), (686, 202220), (980, 141554), (1372, 101110), (1715, 80888), (1960, 70777), (2744, 50555), (3430, 40444), (6860, 20222), (10111, 13720)]