18723375

素因数分解:

$3^2\times 5^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1$

素因数の和:138

約数の個数: 96

約数和(自身を含む): 39424320

約数和(自身を除く): 20700945

約数列:

[1, 3, 5, 9, 11, 15, 17, 25, 33, 45, 51, 55, 75, 85, 89, 99, 125, 153, 165, 187, 225, 255, 267, 275, 375, 425, 445, 495, 561, 765, 801, 825, 935, 979, 1125, 1275, 1335, 1375, 1513, 1683, 2125, 2225, 2475, 2805, 2937, 3825, 4005, 4125, 4539, 4675, 4895, 6375, 6675, 7565, 8415, 8811, 11125, 12375, 13617, 14025, 14685, 16643, 19125, 20025, 22695, 23375, 24475, 33375, 37825, 42075, 44055, 49929, 68085, 70125, 73425, 83215, 100125, 113475, 122375, 149787, 189125, 210375, 220275, 249645, 340425, 367125, 416075, 567375, 748935, 1101375, 1248225, 1702125, 2080375, 3744675, 6241125, 18723375]

約数ペア:

[(1, 18723375), (3, 6241125), (5, 3744675), (9, 2080375), (11, 1702125), (15, 1248225), (17, 1101375), (25, 748935), (33, 567375), (45, 416075), (51, 367125), (55, 340425), (75, 249645), (85, 220275), (89, 210375), (99, 189125), (125, 149787), (153, 122375), (165, 113475), (187, 100125), (225, 83215), (255, 73425), (267, 70125), (275, 68085), (375, 49929), (425, 44055), (445, 42075), (495, 37825), (561, 33375), (765, 24475), (801, 23375), (825, 22695), (935, 20025), (979, 19125), (1125, 16643), (1275, 14685), (1335, 14025), (1375, 13617), (1513, 12375), (1683, 11125), (2125, 8811), (2225, 8415), (2475, 7565), (2805, 6675), (2937, 6375), (3825, 4895), (4005, 4675), (4125, 4539)]