74857545

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{1997}}^1$

素因数の和:2039

約数の個数: 72

約数和(自身を含む): 159895944

約数和(自身を除く): 85038399

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 35, 45, 49, 51, 63, 85, 105, 119, 147, 153, 245, 255, 315, 357, 441, 595, 735, 765, 833, 1071, 1785, 1997, 2205, 2499, 4165, 5355, 5991, 7497, 9985, 12495, 13979, 17973, 29955, 33949, 37485, 41937, 69895, 89865, 97853, 101847, 125811, 169745, 209685, 237643, 293559, 305541, 489265, 509235, 629055, 712929, 880677, 1188215, 1467795, 1527705, 1663501, 2138787, 3564645, 4403385, 4990503, 8317505, 10693935, 14971509, 24952515, 74857545]

約数ペア:

[(1, 74857545), (3, 24952515), (5, 14971509), (7, 10693935), (9, 8317505), (15, 4990503), (17, 4403385), (21, 3564645), (35, 2138787), (45, 1663501), (49, 1527705), (51, 1467795), (63, 1188215), (85, 880677), (105, 712929), (119, 629055), (147, 509235), (153, 489265), (245, 305541), (255, 293559), (315, 237643), (357, 209685), (441, 169745), (595, 125811), (735, 101847), (765, 97853), (833, 89865), (1071, 69895), (1785, 41937), (1997, 37485), (2205, 33949), (2499, 29955), (4165, 17973), (5355, 13979), (5991, 12495), (7497, 9985)]