9122500

素因数分解:

$2^2\times 5^4\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:154

約数の個数: 60

約数和(自身を含む): 20665260

約数和(自身を除く): 11542760

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 89, 100, 125, 164, 178, 205, 250, 356, 410, 445, 500, 625, 820, 890, 1025, 1250, 1780, 2050, 2225, 2500, 3649, 4100, 4450, 5125, 7298, 8900, 10250, 11125, 14596, 18245, 20500, 22250, 25625, 36490, 44500, 51250, 55625, 72980, 91225, 102500, 111250, 182450, 222500, 364900, 456125, 912250, 1824500, 2280625, 4561250, 9122500]

約数ペア:

[(1, 9122500), (2, 4561250), (4, 2280625), (5, 1824500), (10, 912250), (20, 456125), (25, 364900), (41, 222500), (50, 182450), (82, 111250), (89, 102500), (100, 91225), (125, 72980), (164, 55625), (178, 51250), (205, 44500), (250, 36490), (356, 25625), (410, 22250), (445, 20500), (500, 18245), (625, 14596), (820, 11125), (890, 10250), (1025, 8900), (1250, 7298), (1780, 5125), (2050, 4450), (2225, 4100), (2500, 3649)]