21049367080

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{149}}^1\times {\mathrm{72077}}^1$

素因数の和:72251

約数の個数: 96

約数和(自身を含む): 55464021000

約数和(自身を除く): 34414653920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 149, 196, 245, 280, 298, 392, 490, 596, 745, 980, 1043, 1192, 1490, 1960, 2086, 2980, 4172, 5215, 5960, 7301, 8344, 10430, 14602, 20860, 29204, 36505, 41720, 58408, 72077, 73010, 144154, 146020, 288308, 292040, 360385, 504539, 576616, 720770, 1009078, 1441540, 2018156, 2522695, 2883080, 3531773, 4036312, 5045390, 7063546, 10090780, 10739473, 14127092, 17658865, 20181560, 21478946, 28254184, 35317730, 42957892, 53697365, 70635460, 75176311, 85915784, 107394730, 141270920, 150352622, 214789460, 300705244, 375881555, 429578920, 526234177, 601410488, 751763110, 1052468354, 1503526220, 2104936708, 2631170885, 3007052440, 4209873416, 5262341770, 10524683540, 21049367080]

約数ペア:

[(1, 21049367080), (2, 10524683540), (4, 5262341770), (5, 4209873416), (7, 3007052440), (8, 2631170885), (10, 2104936708), (14, 1503526220), (20, 1052468354), (28, 751763110), (35, 601410488), (40, 526234177), (49, 429578920), (56, 375881555), (70, 300705244), (98, 214789460), (140, 150352622), (149, 141270920), (196, 107394730), (245, 85915784), (280, 75176311), (298, 70635460), (392, 53697365), (490, 42957892), (596, 35317730), (745, 28254184), (980, 21478946), (1043, 20181560), (1192, 17658865), (1490, 14127092), (1960, 10739473), (2086, 10090780), (2980, 7063546), (4172, 5045390), (5215, 4036312), (5960, 3531773), (7301, 2883080), (8344, 2522695), (10430, 2018156), (14602, 1441540), (20860, 1009078), (29204, 720770), (36505, 576616), (41720, 504539), (58408, 360385), (72077, 292040), (73010, 288308), (144154, 146020)]