19007080

素因数分解:

$2^3\times 5^1\times {\mathrm{643}}^1\times {\mathrm{739}}^1$

素因数の和:1393

約数の個数: 32

約数和(自身を含む): 42890400

約数和(自身を除く): 23883320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 643, 739, 1286, 1478, 2572, 2956, 3215, 3695, 5144, 5912, 6430, 7390, 12860, 14780, 25720, 29560, 475177, 950354, 1900708, 2375885, 3801416, 4751770, 9503540, 19007080]

約数ペア:

[(1, 19007080), (2, 9503540), (4, 4751770), (5, 3801416), (8, 2375885), (10, 1900708), (20, 950354), (40, 475177), (643, 29560), (739, 25720), (1286, 14780), (1478, 12860), (2572, 7390), (2956, 6430), (3215, 5912), (3695, 5144)]