29947780

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{359}}^1$

素因数の和:508

約数の個数: 48

約数和(自身を含む): 65197440

約数和(自身を除く): 35249660

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 97, 172, 194, 215, 359, 388, 430, 485, 718, 860, 970, 1436, 1795, 1940, 3590, 4171, 7180, 8342, 15437, 16684, 20855, 30874, 34823, 41710, 61748, 69646, 77185, 83420, 139292, 154370, 174115, 308740, 348230, 696460, 1497389, 2994778, 5989556, 7486945, 14973890, 29947780]

約数ペア:

[(1, 29947780), (2, 14973890), (4, 7486945), (5, 5989556), (10, 2994778), (20, 1497389), (43, 696460), (86, 348230), (97, 308740), (172, 174115), (194, 154370), (215, 139292), (359, 83420), (388, 77185), (430, 69646), (485, 61748), (718, 41710), (860, 34823), (970, 30874), (1436, 20855), (1795, 16684), (1940, 15437), (3590, 8342), (4171, 7180)]