678900460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{27091}}^1$

素因数の和:27286

約数の個数: 48

約数和(自身を含む): 1638524160

約数和(自身を除く): 959623700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 179, 358, 716, 895, 1253, 1790, 2506, 3580, 5012, 6265, 12530, 25060, 27091, 54182, 108364, 135455, 189637, 270910, 379274, 541820, 758548, 948185, 1896370, 3792740, 4849289, 9698578, 19397156, 24246445, 33945023, 48492890, 67890046, 96985780, 135780092, 169725115, 339450230, 678900460]

約数ペア:

[(1, 678900460), (2, 339450230), (4, 169725115), (5, 135780092), (7, 96985780), (10, 67890046), (14, 48492890), (20, 33945023), (28, 24246445), (35, 19397156), (70, 9698578), (140, 4849289), (179, 3792740), (358, 1896370), (716, 948185), (895, 758548), (1253, 541820), (1790, 379274), (2506, 270910), (3580, 189637), (5012, 135455), (6265, 108364), (12530, 54182), (25060, 27091)]