9992920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{401}}^1$

素因数の和:508

約数の個数: 64

約数和(自身を含む): 26049600

約数和(自身を除く): 16056680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 89, 140, 178, 280, 356, 401, 445, 623, 712, 802, 890, 1246, 1604, 1780, 2005, 2492, 2807, 3115, 3208, 3560, 4010, 4984, 5614, 6230, 8020, 11228, 12460, 14035, 16040, 22456, 24920, 28070, 35689, 56140, 71378, 112280, 142756, 178445, 249823, 285512, 356890, 499646, 713780, 999292, 1249115, 1427560, 1998584, 2498230, 4996460, 9992920]

約数ペア:

[(1, 9992920), (2, 4996460), (4, 2498230), (5, 1998584), (7, 1427560), (8, 1249115), (10, 999292), (14, 713780), (20, 499646), (28, 356890), (35, 285512), (40, 249823), (56, 178445), (70, 142756), (89, 112280), (140, 71378), (178, 56140), (280, 35689), (356, 28070), (401, 24920), (445, 22456), (623, 16040), (712, 14035), (802, 12460), (890, 11228), (1246, 8020), (1604, 6230), (1780, 5614), (2005, 4984), (2492, 4010), (2807, 3560), (3115, 3208)]