72470540

素因数分解:

$2^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{16249}}^1$

素因数の和:16481

約数の個数: 24

約数和(自身を含む): 152880000

約数和(自身を除く): 80409460

約数列:

[1, 2, 4, 5, 10, 20, 223, 446, 892, 1115, 2230, 4460, 16249, 32498, 64996, 81245, 162490, 324980, 3623527, 7247054, 14494108, 18117635, 36235270, 72470540]

約数ペア:

[(1, 72470540), (2, 36235270), (4, 18117635), (5, 14494108), (10, 7247054), (20, 3623527), (223, 324980), (446, 162490), (892, 81245), (1115, 64996), (2230, 32498), (4460, 16249)]