27205240

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{15817}}^1$

素因数の和:15871

約数の個数: 32

約数和(自身を含む): 62639280

約数和(自身を除く): 35434040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 15817, 31634, 63268, 79085, 126536, 158170, 316340, 632680, 680131, 1360262, 2720524, 3400655, 5441048, 6801310, 13602620, 27205240]

約数ペア:

[(1, 27205240), (2, 13602620), (4, 6801310), (5, 5441048), (8, 3400655), (10, 2720524), (20, 1360262), (40, 680131), (43, 632680), (86, 316340), (172, 158170), (215, 126536), (344, 79085), (430, 63268), (860, 31634), (1720, 15817)]