1312000

素因数分解:

$2^8\times 5^3\times {\mathrm{41}}^1$

素因数の和:72

約数の個数: 72

約数和(自身を含む): 3348072

約数和(自身を除く): 2036072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 41, 50, 64, 80, 82, 100, 125, 128, 160, 164, 200, 205, 250, 256, 320, 328, 400, 410, 500, 640, 656, 800, 820, 1000, 1025, 1280, 1312, 1600, 1640, 2000, 2050, 2624, 3200, 3280, 4000, 4100, 5125, 5248, 6400, 6560, 8000, 8200, 10250, 10496, 13120, 16000, 16400, 20500, 26240, 32000, 32800, 41000, 52480, 65600, 82000, 131200, 164000, 262400, 328000, 656000, 1312000]

約数ペア:

[(1, 1312000), (2, 656000), (4, 328000), (5, 262400), (8, 164000), (10, 131200), (16, 82000), (20, 65600), (25, 52480), (32, 41000), (40, 32800), (41, 32000), (50, 26240), (64, 20500), (80, 16400), (82, 16000), (100, 13120), (125, 10496), (128, 10250), (160, 8200), (164, 8000), (200, 6560), (205, 6400), (250, 5248), (256, 5125), (320, 4100), (328, 4000), (400, 3280), (410, 3200), (500, 2624), (640, 2050), (656, 2000), (800, 1640), (820, 1600), (1000, 1312), (1025, 1280)]