12807460

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{271}}^1$

素因数の和:436

約数の個数: 48

約数和(自身を含む): 28788480

約数和(自身を除く): 15981020

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 139, 170, 271, 278, 340, 542, 556, 695, 1084, 1355, 1390, 2363, 2710, 2780, 4607, 4726, 5420, 9214, 9452, 11815, 18428, 23035, 23630, 37669, 46070, 47260, 75338, 92140, 150676, 188345, 376690, 640373, 753380, 1280746, 2561492, 3201865, 6403730, 12807460]

約数ペア:

[(1, 12807460), (2, 6403730), (4, 3201865), (5, 2561492), (10, 1280746), (17, 753380), (20, 640373), (34, 376690), (68, 188345), (85, 150676), (139, 92140), (170, 75338), (271, 47260), (278, 46070), (340, 37669), (542, 23630), (556, 23035), (695, 18428), (1084, 11815), (1355, 9452), (1390, 9214), (2363, 5420), (2710, 4726), (2780, 4607)]