18306225

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{197}}^1$

素因数の和:279

約数の個数: 72

約数和(自身を含む): 38301120

約数和(自身を除く): 19994895

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 59, 63, 75, 105, 175, 177, 197, 225, 295, 315, 413, 525, 531, 591, 885, 985, 1239, 1379, 1475, 1575, 1773, 2065, 2655, 2955, 3717, 4137, 4425, 4925, 6195, 6895, 8865, 10325, 11623, 12411, 13275, 14775, 18585, 20685, 30975, 34475, 34869, 44325, 58115, 62055, 81361, 92925, 103425, 104607, 174345, 244083, 290575, 310275, 406805, 523035, 732249, 871725, 1220415, 2034025, 2615175, 3661245, 6102075, 18306225]

約数ペア:

[(1, 18306225), (3, 6102075), (5, 3661245), (7, 2615175), (9, 2034025), (15, 1220415), (21, 871725), (25, 732249), (35, 523035), (45, 406805), (59, 310275), (63, 290575), (75, 244083), (105, 174345), (175, 104607), (177, 103425), (197, 92925), (225, 81361), (295, 62055), (315, 58115), (413, 44325), (525, 34869), (531, 34475), (591, 30975), (885, 20685), (985, 18585), (1239, 14775), (1379, 13275), (1475, 12411), (1575, 11623), (1773, 10325), (2065, 8865), (2655, 6895), (2955, 6195), (3717, 4925), (4137, 4425)]