12381320

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{6317}}^1$

素因数の和:6342

約数の個数: 48

約数和(自身を含む): 32411340

約数和(自身を除く): 20030020

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 6317, 12634, 25268, 31585, 44219, 50536, 63170, 88438, 126340, 176876, 221095, 252680, 309533, 353752, 442190, 619066, 884380, 1238132, 1547665, 1768760, 2476264, 3095330, 6190660, 12381320]

約数ペア:

[(1, 12381320), (2, 6190660), (4, 3095330), (5, 2476264), (7, 1768760), (8, 1547665), (10, 1238132), (14, 884380), (20, 619066), (28, 442190), (35, 353752), (40, 309533), (49, 252680), (56, 221095), (70, 176876), (98, 126340), (140, 88438), (196, 63170), (245, 50536), (280, 44219), (392, 31585), (490, 25268), (980, 12634), (1960, 6317)]