28763560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{2389}}^1$

素因数の和:2450

約数の個数: 64

約数和(自身を含む): 75715200

約数和(自身を除く): 46951640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 56, 70, 86, 140, 172, 215, 280, 301, 344, 430, 602, 860, 1204, 1505, 1720, 2389, 2408, 3010, 4778, 6020, 9556, 11945, 12040, 16723, 19112, 23890, 33446, 47780, 66892, 83615, 95560, 102727, 133784, 167230, 205454, 334460, 410908, 513635, 668920, 719089, 821816, 1027270, 1438178, 2054540, 2876356, 3595445, 4109080, 5752712, 7190890, 14381780, 28763560]

約数ペア:

[(1, 28763560), (2, 14381780), (4, 7190890), (5, 5752712), (7, 4109080), (8, 3595445), (10, 2876356), (14, 2054540), (20, 1438178), (28, 1027270), (35, 821816), (40, 719089), (43, 668920), (56, 513635), (70, 410908), (86, 334460), (140, 205454), (172, 167230), (215, 133784), (280, 102727), (301, 95560), (344, 83615), (430, 66892), (602, 47780), (860, 33446), (1204, 23890), (1505, 19112), (1720, 16723), (2389, 12040), (2408, 11945), (3010, 9556), (4778, 6020)]