2578128910

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{257}}^1\times {\mathrm{1031}}^1$

素因数の和:1441

約数の個数: 64

約数和(自身を含む): 5367720960

約数和(自身を除く): 2789592050

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 139, 257, 278, 514, 695, 973, 1031, 1285, 1390, 1799, 1946, 2062, 2570, 3598, 4865, 5155, 7217, 8995, 9730, 10310, 14434, 17990, 35723, 36085, 71446, 72170, 143309, 178615, 250061, 264967, 286618, 357230, 500122, 529934, 716545, 1003163, 1250305, 1324835, 1433090, 1854769, 2006326, 2500610, 2649670, 3709538, 5015815, 9273845, 10031630, 18547690, 36830413, 73660826, 184152065, 257812891, 368304130, 515625782, 1289064455, 2578128910]

約数ペア:

[(1, 2578128910), (2, 1289064455), (5, 515625782), (7, 368304130), (10, 257812891), (14, 184152065), (35, 73660826), (70, 36830413), (139, 18547690), (257, 10031630), (278, 9273845), (514, 5015815), (695, 3709538), (973, 2649670), (1031, 2500610), (1285, 2006326), (1390, 1854769), (1799, 1433090), (1946, 1324835), (2062, 1250305), (2570, 1003163), (3598, 716545), (4865, 529934), (5155, 500122), (7217, 357230), (8995, 286618), (9730, 264967), (10310, 250061), (14434, 178615), (17990, 143309), (35723, 72170), (36085, 71446)]