19874010

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{389}}^1$

素因数の和:543

約数の個数: 64

約数和(自身を含む): 51891840

約数和(自身を除く): 32017830

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 131, 195, 262, 389, 390, 393, 655, 778, 786, 1167, 1310, 1703, 1945, 1965, 2334, 3406, 3890, 3930, 5057, 5109, 5835, 8515, 10114, 10218, 11670, 15171, 17030, 25285, 25545, 30342, 50570, 50959, 51090, 75855, 101918, 151710, 152877, 254795, 305754, 509590, 662467, 764385, 1324934, 1528770, 1987401, 3312335, 3974802, 6624670, 9937005, 19874010]

約数ペア:

[(1, 19874010), (2, 9937005), (3, 6624670), (5, 3974802), (6, 3312335), (10, 1987401), (13, 1528770), (15, 1324934), (26, 764385), (30, 662467), (39, 509590), (65, 305754), (78, 254795), (130, 152877), (131, 151710), (195, 101918), (262, 75855), (389, 51090), (390, 50959), (393, 50570), (655, 30342), (778, 25545), (786, 25285), (1167, 17030), (1310, 15171), (1703, 11670), (1945, 10218), (1965, 10114), (2334, 8515), (3406, 5835), (3890, 5109), (3930, 5057)]