19084720

素因数分解:

$2^4\times 5^1\times {\mathrm{191}}^1\times {\mathrm{1249}}^1$

素因数の和:1453

約数の個数: 40

約数和(自身を含む): 44640000

約数和(自身を除く): 25555280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 191, 382, 764, 955, 1249, 1528, 1910, 2498, 3056, 3820, 4996, 6245, 7640, 9992, 12490, 15280, 19984, 24980, 49960, 99920, 238559, 477118, 954236, 1192795, 1908472, 2385590, 3816944, 4771180, 9542360, 19084720]

約数ペア:

[(1, 19084720), (2, 9542360), (4, 4771180), (5, 3816944), (8, 2385590), (10, 1908472), (16, 1192795), (20, 954236), (40, 477118), (80, 238559), (191, 99920), (382, 49960), (764, 24980), (955, 19984), (1249, 15280), (1528, 12490), (1910, 9992), (2498, 7640), (3056, 6245), (3820, 4996)]