268545320

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{156131}}^1$

素因数の和:156185

約数の個数: 32

約数和(自身を含む): 618282720

約数和(自身を除く): 349737400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 156131, 312262, 624524, 780655, 1249048, 1561310, 3122620, 6245240, 6713633, 13427266, 26854532, 33568165, 53709064, 67136330, 134272660, 268545320]

約数ペア:

[(1, 268545320), (2, 134272660), (4, 67136330), (5, 53709064), (8, 33568165), (10, 26854532), (20, 13427266), (40, 6713633), (43, 6245240), (86, 3122620), (172, 1561310), (215, 1249048), (344, 780655), (430, 624524), (860, 312262), (1720, 156131)]