22140080

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{2539}}^1$

素因数の和:2661

約数の個数: 40

約数和(自身を含む): 51968400

約数和(自身を除く): 29828320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 2539, 4360, 5078, 8720, 10156, 12695, 20312, 25390, 40624, 50780, 101560, 203120, 276751, 553502, 1107004, 1383755, 2214008, 2767510, 4428016, 5535020, 11070040, 22140080]

約数ペア:

[(1, 22140080), (2, 11070040), (4, 5535020), (5, 4428016), (8, 2767510), (10, 2214008), (16, 1383755), (20, 1107004), (40, 553502), (80, 276751), (109, 203120), (218, 101560), (436, 50780), (545, 40624), (872, 25390), (1090, 20312), (1744, 12695), (2180, 10156), (2539, 8720), (4360, 5078)]