20512272795

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{419}}^1\times {\mathrm{463}}^1$

素因数の和:969

約数の個数: 128

約数和(自身を含む): 40410316800

約数和(自身を除く): 19898044005

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 53, 57, 95, 105, 133, 159, 265, 285, 371, 399, 419, 463, 665, 795, 1007, 1113, 1257, 1389, 1855, 1995, 2095, 2315, 2933, 3021, 3241, 5035, 5565, 6285, 6945, 7049, 7961, 8797, 8799, 9723, 14665, 15105, 16205, 21147, 22207, 23883, 24539, 26391, 35245, 39805, 43985, 43995, 48615, 55727, 61579, 66621, 73617, 105735, 111035, 119415, 122695, 131955, 155449, 167181, 171773, 184737, 193997, 278635, 307895, 333105, 368085, 421933, 466241, 466347, 515319, 581991, 777245, 835905, 858865, 923685, 969985, 1265799, 1357979, 1398723, 2109665, 2331205, 2331735, 2576595, 2909955, 2953531, 3263687, 3685943, 4073937, 6328995, 6789895, 6993615, 8860593, 9791061, 10281841, 11057829, 14767655, 16318435, 18429715, 20369685, 25801601, 30845523, 44302965, 48955305, 51409205, 55289145, 71972887, 77404803, 129008005, 154227615, 195354979, 215918661, 359864435, 387024015, 586064937, 976774895, 1079593305, 1367484853, 2930324685, 4102454559, 6837424265, 20512272795]

約数ペア:

[(1, 20512272795), (3, 6837424265), (5, 4102454559), (7, 2930324685), (15, 1367484853), (19, 1079593305), (21, 976774895), (35, 586064937), (53, 387024015), (57, 359864435), (95, 215918661), (105, 195354979), (133, 154227615), (159, 129008005), (265, 77404803), (285, 71972887), (371, 55289145), (399, 51409205), (419, 48955305), (463, 44302965), (665, 30845523), (795, 25801601), (1007, 20369685), (1113, 18429715), (1257, 16318435), (1389, 14767655), (1855, 11057829), (1995, 10281841), (2095, 9791061), (2315, 8860593), (2933, 6993615), (3021, 6789895), (3241, 6328995), (5035, 4073937), (5565, 3685943), (6285, 3263687), (6945, 2953531), (7049, 2909955), (7961, 2576595), (8797, 2331735), (8799, 2331205), (9723, 2109665), (14665, 1398723), (15105, 1357979), (16205, 1265799), (21147, 969985), (22207, 923685), (23883, 858865), (24539, 835905), (26391, 777245), (35245, 581991), (39805, 515319), (43985, 466347), (43995, 466241), (48615, 421933), (55727, 368085), (61579, 333105), (66621, 307895), (73617, 278635), (105735, 193997), (111035, 184737), (119415, 171773), (122695, 167181), (131955, 155449)]