20145708840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{421}}^1\times {\mathrm{4111}}^1$

素因数の和:4643

約数の個数: 128

約数和(自身を含む): 61220113920

約数和(自身を除く): 41074405080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 97, 120, 194, 291, 388, 421, 485, 582, 776, 842, 970, 1164, 1263, 1455, 1684, 1940, 2105, 2328, 2526, 2910, 3368, 3880, 4111, 4210, 5052, 5820, 6315, 8222, 8420, 10104, 11640, 12333, 12630, 16444, 16840, 20555, 24666, 25260, 32888, 40837, 41110, 49332, 50520, 61665, 81674, 82220, 98664, 122511, 123330, 163348, 164440, 204185, 245022, 246660, 326696, 398767, 408370, 490044, 493320, 612555, 797534, 816740, 980088, 1196301, 1225110, 1595068, 1633480, 1730731, 1993835, 2392602, 2450220, 3190136, 3461462, 3987670, 4785204, 4900440, 5192193, 5981505, 6922924, 7975340, 8653655, 9570408, 10384386, 11963010, 13845848, 15950680, 17307310, 20768772, 23926020, 25960965, 34614620, 41537544, 47852040, 51921930, 69229240, 103843860, 167880907, 207687720, 335761814, 503642721, 671523628, 839404535, 1007285442, 1343047256, 1678809070, 2014570884, 2518213605, 3357618140, 4029141768, 5036427210, 6715236280, 10072854420, 20145708840]

約数ペア:

[(1, 20145708840), (2, 10072854420), (3, 6715236280), (4, 5036427210), (5, 4029141768), (6, 3357618140), (8, 2518213605), (10, 2014570884), (12, 1678809070), (15, 1343047256), (20, 1007285442), (24, 839404535), (30, 671523628), (40, 503642721), (60, 335761814), (97, 207687720), (120, 167880907), (194, 103843860), (291, 69229240), (388, 51921930), (421, 47852040), (485, 41537544), (582, 34614620), (776, 25960965), (842, 23926020), (970, 20768772), (1164, 17307310), (1263, 15950680), (1455, 13845848), (1684, 11963010), (1940, 10384386), (2105, 9570408), (2328, 8653655), (2526, 7975340), (2910, 6922924), (3368, 5981505), (3880, 5192193), (4111, 4900440), (4210, 4785204), (5052, 3987670), (5820, 3461462), (6315, 3190136), (8222, 2450220), (8420, 2392602), (10104, 1993835), (11640, 1730731), (12333, 1633480), (12630, 1595068), (16444, 1225110), (16840, 1196301), (20555, 980088), (24666, 816740), (25260, 797534), (32888, 612555), (40837, 493320), (41110, 490044), (49332, 408370), (50520, 398767), (61665, 326696), (81674, 246660), (82220, 245022), (98664, 204185), (122511, 164440), (123330, 163348)]