22788280

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{13249}}^1$

素因数の和:13303

約数の個数: 32

約数和(自身を含む): 52470000

約数和(自身を除く): 29681720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 13249, 26498, 52996, 66245, 105992, 132490, 264980, 529960, 569707, 1139414, 2278828, 2848535, 4557656, 5697070, 11394140, 22788280]

約数ペア:

[(1, 22788280), (2, 11394140), (4, 5697070), (5, 4557656), (8, 2848535), (10, 2278828), (20, 1139414), (40, 569707), (43, 529960), (86, 264980), (172, 132490), (215, 105992), (344, 66245), (430, 52996), (860, 26498), (1720, 13249)]