2716280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:216

約数の個数: 64

約数和(自身を含む): 7128000

約数和(自身を除く): 4411720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 89, 109, 140, 178, 218, 280, 356, 436, 445, 545, 623, 712, 763, 872, 890, 1090, 1246, 1526, 1780, 2180, 2492, 3052, 3115, 3560, 3815, 4360, 4984, 6104, 6230, 7630, 9701, 12460, 15260, 19402, 24920, 30520, 38804, 48505, 67907, 77608, 97010, 135814, 194020, 271628, 339535, 388040, 543256, 679070, 1358140, 2716280]

約数ペア:

[(1, 2716280), (2, 1358140), (4, 679070), (5, 543256), (7, 388040), (8, 339535), (10, 271628), (14, 194020), (20, 135814), (28, 97010), (35, 77608), (40, 67907), (56, 48505), (70, 38804), (89, 30520), (109, 24920), (140, 19402), (178, 15260), (218, 12460), (280, 9701), (356, 7630), (436, 6230), (445, 6104), (545, 4984), (623, 4360), (712, 3815), (763, 3560), (872, 3115), (890, 3052), (1090, 2492), (1246, 2180), (1526, 1780)]