289454990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{139}}^1\times {\mathrm{1721}}^1$

素因数の和:1889

約数の個数: 48

約数和(自身を含む): 577145520

約数和(自身を除く): 287690530

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 139, 242, 278, 605, 695, 1210, 1390, 1529, 1721, 3058, 3442, 7645, 8605, 15290, 16819, 17210, 18931, 33638, 37862, 84095, 94655, 168190, 189310, 208241, 239219, 416482, 478438, 1041205, 1196095, 2082410, 2392190, 2631409, 5262818, 13157045, 26314090, 28945499, 57890998, 144727495, 289454990]

約数ペア:

[(1, 289454990), (2, 144727495), (5, 57890998), (10, 28945499), (11, 26314090), (22, 13157045), (55, 5262818), (110, 2631409), (121, 2392190), (139, 2082410), (242, 1196095), (278, 1041205), (605, 478438), (695, 416482), (1210, 239219), (1390, 208241), (1529, 189310), (1721, 168190), (3058, 94655), (3442, 84095), (7645, 37862), (8605, 33638), (15290, 18931), (16819, 17210)]