22200040

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{12907}}^1$

素因数の和:12961

約数の個数: 32

約数和(自身を含む): 51115680

約数和(自身を除く): 28915640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 12907, 25814, 51628, 64535, 103256, 129070, 258140, 516280, 555001, 1110002, 2220004, 2775005, 4440008, 5550010, 11100020, 22200040]

約数ペア:

[(1, 22200040), (2, 11100020), (4, 5550010), (5, 4440008), (8, 2775005), (10, 2220004), (20, 1110002), (40, 555001), (43, 516280), (86, 258140), (172, 129070), (215, 103256), (344, 64535), (430, 51628), (860, 25814), (1720, 12907)]