290490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{421}}^1$

素因数の和:454

約数の個数: 32

約数和(自身を含む): 729216

約数和(自身を除く): 438726

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 421, 690, 842, 1263, 2105, 2526, 4210, 6315, 9683, 12630, 19366, 29049, 48415, 58098, 96830, 145245, 290490]

約数ペア:

[(1, 290490), (2, 145245), (3, 96830), (5, 58098), (6, 48415), (10, 29049), (15, 19366), (23, 12630), (30, 9683), (46, 6315), (69, 4210), (115, 2526), (138, 2105), (230, 1263), (345, 842), (421, 690)]