27754780

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{547}}^1$

素因数の和:658

約数の個数: 48

約数和(自身を含む): 60762240

約数和(自身を除く): 33007460

約数列:

[1, 2, 4, 5, 10, 20, 43, 59, 86, 118, 172, 215, 236, 295, 430, 547, 590, 860, 1094, 1180, 2188, 2537, 2735, 5074, 5470, 10148, 10940, 12685, 23521, 25370, 32273, 47042, 50740, 64546, 94084, 117605, 129092, 161365, 235210, 322730, 470420, 645460, 1387739, 2775478, 5550956, 6938695, 13877390, 27754780]

約数ペア:

[(1, 27754780), (2, 13877390), (4, 6938695), (5, 5550956), (10, 2775478), (20, 1387739), (43, 645460), (59, 470420), (86, 322730), (118, 235210), (172, 161365), (215, 129092), (236, 117605), (295, 94084), (430, 64546), (547, 50740), (590, 47042), (860, 32273), (1094, 25370), (1180, 23521), (2188, 12685), (2537, 10940), (2735, 10148), (5074, 5470)]