18948735

素因数分解:

$3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:150

約数の個数: 80

約数和(自身を含む): 37810080

約数和(自身を除く): 18861345

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 59, 61, 65, 81, 117, 135, 177, 183, 195, 295, 305, 351, 405, 531, 549, 585, 767, 793, 885, 915, 1053, 1593, 1647, 1755, 2301, 2379, 2655, 2745, 3599, 3835, 3965, 4779, 4941, 5265, 6903, 7137, 7965, 8235, 10797, 11505, 11895, 17995, 20709, 21411, 23895, 24705, 32391, 34515, 35685, 46787, 53985, 62127, 64233, 97173, 103545, 107055, 140361, 161955, 233935, 291519, 310635, 321165, 421083, 485865, 701805, 1263249, 1457595, 2105415, 3789747, 6316245, 18948735]

約数ペア:

[(1, 18948735), (3, 6316245), (5, 3789747), (9, 2105415), (13, 1457595), (15, 1263249), (27, 701805), (39, 485865), (45, 421083), (59, 321165), (61, 310635), (65, 291519), (81, 233935), (117, 161955), (135, 140361), (177, 107055), (183, 103545), (195, 97173), (295, 64233), (305, 62127), (351, 53985), (405, 46787), (531, 35685), (549, 34515), (585, 32391), (767, 24705), (793, 23895), (885, 21411), (915, 20709), (1053, 17995), (1593, 11895), (1647, 11505), (1755, 10797), (2301, 8235), (2379, 7965), (2655, 7137), (2745, 6903), (3599, 5265), (3835, 4941), (3965, 4779)]