989879740

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{367}}^1\times {\mathrm{7933}}^1$

素因数の和:8326

約数の個数: 48

約数和(自身を含む): 2207302272

約数和(自身を除く): 1217422532

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 367, 734, 1468, 1835, 3670, 6239, 7340, 7933, 12478, 15866, 24956, 31195, 31732, 39665, 62390, 79330, 124780, 134861, 158660, 269722, 539444, 674305, 1348610, 2697220, 2911411, 5822822, 11645644, 14557055, 29114110, 49493987, 58228220, 98987974, 197975948, 247469935, 494939870, 989879740]

約数ペア:

[(1, 989879740), (2, 494939870), (4, 247469935), (5, 197975948), (10, 98987974), (17, 58228220), (20, 49493987), (34, 29114110), (68, 14557055), (85, 11645644), (170, 5822822), (340, 2911411), (367, 2697220), (734, 1348610), (1468, 674305), (1835, 539444), (3670, 269722), (6239, 158660), (7340, 134861), (7933, 124780), (12478, 79330), (15866, 62390), (24956, 39665), (31195, 31732)]