2987788720

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{181}}^1\times {\mathrm{4211}}^1$

素因数の和:4419

約数の個数: 120

約数和(自身を含む): 8127323568

約数和(自身を除く): 5139534848

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 181, 196, 245, 280, 362, 392, 490, 560, 724, 784, 905, 980, 1267, 1448, 1810, 1960, 2534, 2896, 3620, 3920, 4211, 5068, 6335, 7240, 8422, 8869, 10136, 12670, 14480, 16844, 17738, 20272, 21055, 25340, 29477, 33688, 35476, 42110, 44345, 50680, 58954, 67376, 70952, 84220, 88690, 101360, 117908, 141904, 147385, 168440, 177380, 206339, 235816, 294770, 336880, 354760, 412678, 471632, 589540, 709520, 762191, 825356, 1031695, 1179080, 1524382, 1650712, 2063390, 2358160, 3048764, 3301424, 3810955, 4126780, 5335337, 6097528, 7621910, 8253560, 10670674, 12195056, 15243820, 16507120, 21341348, 26676685, 30487640, 37347359, 42682696, 53353370, 60975280, 74694718, 85365392, 106706740, 149389436, 186736795, 213413480, 298778872, 373473590, 426826960, 597557744, 746947180, 1493894360, 2987788720]

約数ペア:

[(1, 2987788720), (2, 1493894360), (4, 746947180), (5, 597557744), (7, 426826960), (8, 373473590), (10, 298778872), (14, 213413480), (16, 186736795), (20, 149389436), (28, 106706740), (35, 85365392), (40, 74694718), (49, 60975280), (56, 53353370), (70, 42682696), (80, 37347359), (98, 30487640), (112, 26676685), (140, 21341348), (181, 16507120), (196, 15243820), (245, 12195056), (280, 10670674), (362, 8253560), (392, 7621910), (490, 6097528), (560, 5335337), (724, 4126780), (784, 3810955), (905, 3301424), (980, 3048764), (1267, 2358160), (1448, 2063390), (1810, 1650712), (1960, 1524382), (2534, 1179080), (2896, 1031695), (3620, 825356), (3920, 762191), (4211, 709520), (5068, 589540), (6335, 471632), (7240, 412678), (8422, 354760), (8869, 336880), (10136, 294770), (12670, 235816), (14480, 206339), (16844, 177380), (17738, 168440), (20272, 147385), (21055, 141904), (25340, 117908), (29477, 101360), (33688, 88690), (35476, 84220), (42110, 70952), (44345, 67376), (50680, 58954)]