1280457766

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{83}}^1\times {\mathrm{983}}^1$

素因数の和:1153

約数の個数: 64

約数和(自身を含む): 2380492800

約数和(自身を除く): 1100035034

約数列:

[1, 2, 7, 14, 19, 38, 59, 83, 118, 133, 166, 266, 413, 581, 826, 983, 1121, 1162, 1577, 1966, 2242, 3154, 4897, 6881, 7847, 9794, 11039, 13762, 15694, 18677, 22078, 34279, 37354, 57997, 68558, 81589, 93043, 115994, 130739, 163178, 186086, 261478, 405979, 571123, 651301, 811958, 1101943, 1142246, 1302602, 1550191, 2203886, 3100382, 4813751, 7713601, 9627502, 10851337, 15427202, 21702674, 33696257, 67392514, 91461269, 182922538, 640228883, 1280457766]

約数ペア:

[(1, 1280457766), (2, 640228883), (7, 182922538), (14, 91461269), (19, 67392514), (38, 33696257), (59, 21702674), (83, 15427202), (118, 10851337), (133, 9627502), (166, 7713601), (266, 4813751), (413, 3100382), (581, 2203886), (826, 1550191), (983, 1302602), (1121, 1142246), (1162, 1101943), (1577, 811958), (1966, 651301), (2242, 571123), (3154, 405979), (4897, 261478), (6881, 186086), (7847, 163178), (9794, 130739), (11039, 115994), (13762, 93043), (15694, 81589), (18677, 68558), (22078, 57997), (34279, 37354)]