2415440

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{277}}^1$

素因数の和:399

約数の個数: 40

約数和(自身を含む): 5687880

約数和(自身を除く): 3272440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 277, 436, 545, 554, 872, 1090, 1108, 1385, 1744, 2180, 2216, 2770, 4360, 4432, 5540, 8720, 11080, 22160, 30193, 60386, 120772, 150965, 241544, 301930, 483088, 603860, 1207720, 2415440]

約数ペア:

[(1, 2415440), (2, 1207720), (4, 603860), (5, 483088), (8, 301930), (10, 241544), (16, 150965), (20, 120772), (40, 60386), (80, 30193), (109, 22160), (218, 11080), (277, 8720), (436, 5540), (545, 4432), (554, 4360), (872, 2770), (1090, 2216), (1108, 2180), (1385, 1744)]