8200000

素因数分解:

$2^6\times 5^5\times {\mathrm{41}}^1$

素因数の和:78

約数の個数: 84

約数和(自身を含む): 20834604

約数和(自身を除く): 12634604

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 41, 50, 64, 80, 82, 100, 125, 160, 164, 200, 205, 250, 320, 328, 400, 410, 500, 625, 656, 800, 820, 1000, 1025, 1250, 1312, 1600, 1640, 2000, 2050, 2500, 2624, 3125, 3280, 4000, 4100, 5000, 5125, 6250, 6560, 8000, 8200, 10000, 10250, 12500, 13120, 16400, 20000, 20500, 25000, 25625, 32800, 40000, 41000, 50000, 51250, 65600, 82000, 100000, 102500, 128125, 164000, 200000, 205000, 256250, 328000, 410000, 512500, 820000, 1025000, 1640000, 2050000, 4100000, 8200000]

約数ペア:

[(1, 8200000), (2, 4100000), (4, 2050000), (5, 1640000), (8, 1025000), (10, 820000), (16, 512500), (20, 410000), (25, 328000), (32, 256250), (40, 205000), (41, 200000), (50, 164000), (64, 128125), (80, 102500), (82, 100000), (100, 82000), (125, 65600), (160, 51250), (164, 50000), (200, 41000), (205, 40000), (250, 32800), (320, 25625), (328, 25000), (400, 20500), (410, 20000), (500, 16400), (625, 13120), (656, 12500), (800, 10250), (820, 10000), (1000, 8200), (1025, 8000), (1250, 6560), (1312, 6250), (1600, 5125), (1640, 5000), (2000, 4100), (2050, 4000), (2500, 3280), (2624, 3125)]