27776140

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{4049}}^1$

素因数の和:4079

約数の個数: 48

約数和(自身を含む): 68040000

約数和(自身を除く): 40263860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 3430, 4049, 6860, 8098, 16196, 20245, 28343, 40490, 56686, 80980, 113372, 141715, 198401, 283430, 396802, 566860, 793604, 992005, 1388807, 1984010, 2777614, 3968020, 5555228, 6944035, 13888070, 27776140]

約数ペア:

[(1, 27776140), (2, 13888070), (4, 6944035), (5, 5555228), (7, 3968020), (10, 2777614), (14, 1984010), (20, 1388807), (28, 992005), (35, 793604), (49, 566860), (70, 396802), (98, 283430), (140, 198401), (196, 141715), (245, 113372), (343, 80980), (490, 56686), (686, 40490), (980, 28343), (1372, 20245), (1715, 16196), (3430, 8098), (4049, 6860)]