205411860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{26539}}^1$

素因数の和:26597

約数の個数: 72

約数和(自身を含む): 637596960

約数和(自身を除く): 432185100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 430, 516, 645, 774, 860, 1290, 1548, 1935, 2580, 3870, 7740, 26539, 53078, 79617, 106156, 132695, 159234, 238851, 265390, 318468, 398085, 477702, 530780, 796170, 955404, 1141177, 1194255, 1592340, 2282354, 2388510, 3423531, 4564708, 4777020, 5705885, 6847062, 10270593, 11411770, 13694124, 17117655, 20541186, 22823540, 34235310, 41082372, 51352965, 68470620, 102705930, 205411860]

約数ペア:

[(1, 205411860), (2, 102705930), (3, 68470620), (4, 51352965), (5, 41082372), (6, 34235310), (9, 22823540), (10, 20541186), (12, 17117655), (15, 13694124), (18, 11411770), (20, 10270593), (30, 6847062), (36, 5705885), (43, 4777020), (45, 4564708), (60, 3423531), (86, 2388510), (90, 2282354), (129, 1592340), (172, 1194255), (180, 1141177), (215, 955404), (258, 796170), (387, 530780), (430, 477702), (516, 398085), (645, 318468), (774, 265390), (860, 238851), (1290, 159234), (1548, 132695), (1935, 106156), (2580, 79617), (3870, 53078), (7740, 26539)]