19688280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{191}}^1\times {\mathrm{859}}^1$

素因数の和:1064

約数の個数: 64

約数和(自身を含む): 59443200

約数和(自身を除く): 39754920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 191, 382, 573, 764, 859, 955, 1146, 1528, 1718, 1910, 2292, 2577, 2865, 3436, 3820, 4295, 4584, 5154, 5730, 6872, 7640, 8590, 10308, 11460, 12885, 17180, 20616, 22920, 25770, 34360, 51540, 103080, 164069, 328138, 492207, 656276, 820345, 984414, 1312552, 1640690, 1968828, 2461035, 3281380, 3937656, 4922070, 6562760, 9844140, 19688280]

約数ペア:

[(1, 19688280), (2, 9844140), (3, 6562760), (4, 4922070), (5, 3937656), (6, 3281380), (8, 2461035), (10, 1968828), (12, 1640690), (15, 1312552), (20, 984414), (24, 820345), (30, 656276), (40, 492207), (60, 328138), (120, 164069), (191, 103080), (382, 51540), (573, 34360), (764, 25770), (859, 22920), (955, 20616), (1146, 17180), (1528, 12885), (1718, 11460), (1910, 10308), (2292, 8590), (2577, 7640), (2865, 6872), (3436, 5730), (3820, 5154), (4295, 4584)]