66988000

素因数分解:

$2^5\times 5^3\times {\mathrm{16747}}^1$

素因数の和:16772

約数の個数: 48

約数和(自身を含む): 164599344

約数和(自身を除く): 97611344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 800, 1000, 2000, 4000, 16747, 33494, 66988, 83735, 133976, 167470, 267952, 334940, 418675, 535904, 669880, 837350, 1339760, 1674700, 2093375, 2679520, 3349400, 4186750, 6698800, 8373500, 13397600, 16747000, 33494000, 66988000]

約数ペア:

[(1, 66988000), (2, 33494000), (4, 16747000), (5, 13397600), (8, 8373500), (10, 6698800), (16, 4186750), (20, 3349400), (25, 2679520), (32, 2093375), (40, 1674700), (50, 1339760), (80, 837350), (100, 669880), (125, 535904), (160, 418675), (200, 334940), (250, 267952), (400, 167470), (500, 133976), (800, 83735), (1000, 66988), (2000, 33494), (4000, 16747)]