31205625

素因数分解:

$3^1\times 5^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1$

素因数の和:140

約数の個数: 80

約数和(自身を含む): 60730560

約数和(自身を除く): 29524935

約数列:

[1, 3, 5, 11, 15, 17, 25, 33, 51, 55, 75, 85, 89, 125, 165, 187, 255, 267, 275, 375, 425, 445, 561, 625, 825, 935, 979, 1275, 1335, 1375, 1513, 1875, 2125, 2225, 2805, 2937, 4125, 4539, 4675, 4895, 6375, 6675, 6875, 7565, 10625, 11125, 14025, 14685, 16643, 20625, 22695, 23375, 24475, 31875, 33375, 37825, 49929, 55625, 70125, 73425, 83215, 113475, 116875, 122375, 166875, 189125, 249645, 350625, 367125, 416075, 567375, 611875, 945625, 1248225, 1835625, 2080375, 2836875, 6241125, 10401875, 31205625]

約数ペア:

[(1, 31205625), (3, 10401875), (5, 6241125), (11, 2836875), (15, 2080375), (17, 1835625), (25, 1248225), (33, 945625), (51, 611875), (55, 567375), (75, 416075), (85, 367125), (89, 350625), (125, 249645), (165, 189125), (187, 166875), (255, 122375), (267, 116875), (275, 113475), (375, 83215), (425, 73425), (445, 70125), (561, 55625), (625, 49929), (825, 37825), (935, 33375), (979, 31875), (1275, 24475), (1335, 23375), (1375, 22695), (1513, 20625), (1875, 16643), (2125, 14685), (2225, 14025), (2805, 11125), (2937, 10625), (4125, 7565), (4539, 6875), (4675, 6675), (4895, 6375)]