1221323920

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{663763}}^1$

素因数の和:663799

約数の個数: 40

約数和(自身を含む): 2963042496

約数和(自身を除く): 1741718576

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 663763, 1327526, 2655052, 3318815, 5310104, 6637630, 10620208, 13275260, 15266549, 26550520, 30533098, 53101040, 61066196, 76332745, 122132392, 152665490, 244264784, 305330980, 610661960, 1221323920]

約数ペア:

[(1, 1221323920), (2, 610661960), (4, 305330980), (5, 244264784), (8, 152665490), (10, 122132392), (16, 76332745), (20, 61066196), (23, 53101040), (40, 30533098), (46, 26550520), (80, 15266549), (92, 13275260), (115, 10620208), (184, 6637630), (230, 5310104), (368, 3318815), (460, 2655052), (920, 1327526), (1840, 663763)]