678428478

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{21799}}^1$

素因数の和:21846

約数の個数: 96

約数和(自身を含む): 1904448000

約数和(自身を除く): 1226019522

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 19, 21, 26, 38, 39, 42, 57, 63, 78, 91, 114, 117, 126, 133, 171, 182, 234, 247, 266, 273, 342, 399, 494, 546, 741, 798, 819, 1197, 1482, 1638, 1729, 2223, 2394, 3458, 4446, 5187, 10374, 15561, 21799, 31122, 43598, 65397, 130794, 152593, 196191, 283387, 305186, 392382, 414181, 457779, 566774, 828362, 850161, 915558, 1242543, 1373337, 1700322, 1983709, 2485086, 2550483, 2746674, 2899267, 3727629, 3967418, 5100966, 5384353, 5798534, 5951127, 7455258, 8697801, 10768706, 11902254, 16153059, 17395602, 17853381, 26093403, 32306118, 35706762, 37690471, 48459177, 52186806, 75380942, 96918354, 113071413, 226142826, 339214239, 678428478]

約数ペア:

[(1, 678428478), (2, 339214239), (3, 226142826), (6, 113071413), (7, 96918354), (9, 75380942), (13, 52186806), (14, 48459177), (18, 37690471), (19, 35706762), (21, 32306118), (26, 26093403), (38, 17853381), (39, 17395602), (42, 16153059), (57, 11902254), (63, 10768706), (78, 8697801), (91, 7455258), (114, 5951127), (117, 5798534), (126, 5384353), (133, 5100966), (171, 3967418), (182, 3727629), (234, 2899267), (247, 2746674), (266, 2550483), (273, 2485086), (342, 1983709), (399, 1700322), (494, 1373337), (546, 1242543), (741, 915558), (798, 850161), (819, 828362), (1197, 566774), (1482, 457779), (1638, 414181), (1729, 392382), (2223, 305186), (2394, 283387), (3458, 196191), (4446, 152593), (5187, 130794), (10374, 65397), (15561, 43598), (21799, 31122)]