280256284

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{3023}}^1$

素因数の和:3095

約数の個数: 72

約数和(自身を含む): 637072128

約数和(自身を除く): 356815844

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 43, 44, 49, 77, 86, 98, 154, 172, 196, 301, 308, 473, 539, 602, 946, 1078, 1204, 1892, 2107, 2156, 3023, 3311, 4214, 6046, 6622, 8428, 12092, 13244, 21161, 23177, 33253, 42322, 46354, 66506, 84644, 92708, 129989, 133012, 148127, 232771, 259978, 296254, 465542, 519956, 592508, 909923, 931084, 1429879, 1629397, 1819846, 2859758, 3258794, 3639692, 5719516, 6369461, 6517588, 10009153, 12738922, 20018306, 25477844, 40036612, 70064071, 140128142, 280256284]

約数ペア:

[(1, 280256284), (2, 140128142), (4, 70064071), (7, 40036612), (11, 25477844), (14, 20018306), (22, 12738922), (28, 10009153), (43, 6517588), (44, 6369461), (49, 5719516), (77, 3639692), (86, 3258794), (98, 2859758), (154, 1819846), (172, 1629397), (196, 1429879), (301, 931084), (308, 909923), (473, 592508), (539, 519956), (602, 465542), (946, 296254), (1078, 259978), (1204, 232771), (1892, 148127), (2107, 133012), (2156, 129989), (3023, 92708), (3311, 84644), (4214, 66506), (6046, 46354), (6622, 42322), (8428, 33253), (12092, 23177), (13244, 21161)]