1638560

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1$

素因数の和:59

約数の個数: 144

約数和(自身を含む): 5171040

約数和(自身を除く): 3532480

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 19, 20, 22, 28, 32, 35, 38, 40, 44, 49, 55, 56, 70, 76, 77, 80, 88, 95, 98, 110, 112, 133, 140, 152, 154, 160, 176, 190, 196, 209, 220, 224, 245, 266, 280, 304, 308, 352, 380, 385, 392, 418, 440, 490, 532, 539, 560, 608, 616, 665, 760, 770, 784, 836, 880, 931, 980, 1045, 1064, 1078, 1120, 1232, 1330, 1463, 1520, 1540, 1568, 1672, 1760, 1862, 1960, 2090, 2128, 2156, 2464, 2660, 2695, 2926, 3040, 3080, 3344, 3724, 3920, 4180, 4256, 4312, 4655, 5320, 5390, 5852, 6160, 6688, 7315, 7448, 7840, 8360, 8624, 9310, 10241, 10640, 10780, 11704, 12320, 14630, 14896, 16720, 17248, 18620, 20482, 21280, 21560, 23408, 29260, 29792, 33440, 37240, 40964, 43120, 46816, 51205, 58520, 74480, 81928, 86240, 102410, 117040, 148960, 163856, 204820, 234080, 327712, 409640, 819280, 1638560]

約数ペア:

[(1, 1638560), (2, 819280), (4, 409640), (5, 327712), (7, 234080), (8, 204820), (10, 163856), (11, 148960), (14, 117040), (16, 102410), (19, 86240), (20, 81928), (22, 74480), (28, 58520), (32, 51205), (35, 46816), (38, 43120), (40, 40964), (44, 37240), (49, 33440), (55, 29792), (56, 29260), (70, 23408), (76, 21560), (77, 21280), (80, 20482), (88, 18620), (95, 17248), (98, 16720), (110, 14896), (112, 14630), (133, 12320), (140, 11704), (152, 10780), (154, 10640), (160, 10241), (176, 9310), (190, 8624), (196, 8360), (209, 7840), (220, 7448), (224, 7315), (245, 6688), (266, 6160), (280, 5852), (304, 5390), (308, 5320), (352, 4655), (380, 4312), (385, 4256), (392, 4180), (418, 3920), (440, 3724), (490, 3344), (532, 3080), (539, 3040), (560, 2926), (608, 2695), (616, 2660), (665, 2464), (760, 2156), (770, 2128), (784, 2090), (836, 1960), (880, 1862), (931, 1760), (980, 1672), (1045, 1568), (1064, 1540), (1078, 1520), (1120, 1463), (1232, 1330)]