4100000

素因数分解:

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

素因数の和:76

約数の個数: 72

約数和(自身を含む): 10335276

約数和(自身を除く): 6235276

約数列:

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

約数ペア:

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