51560000

素因数分解:

$2^6\times 5^4\times {\mathrm{1289}}^1$

素因数の和:1321

約数の個数: 70

約数和(自身を含む): 127951230

約数和(自身を除く): 76391230

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 160, 200, 250, 320, 400, 500, 625, 800, 1000, 1250, 1289, 1600, 2000, 2500, 2578, 4000, 5000, 5156, 6445, 8000, 10000, 10312, 12890, 20000, 20624, 25780, 32225, 40000, 41248, 51560, 64450, 82496, 103120, 128900, 161125, 206240, 257800, 322250, 412480, 515600, 644500, 805625, 1031200, 1289000, 1611250, 2062400, 2578000, 3222500, 5156000, 6445000, 10312000, 12890000, 25780000, 51560000]

約数ペア:

[(1, 51560000), (2, 25780000), (4, 12890000), (5, 10312000), (8, 6445000), (10, 5156000), (16, 3222500), (20, 2578000), (25, 2062400), (32, 1611250), (40, 1289000), (50, 1031200), (64, 805625), (80, 644500), (100, 515600), (125, 412480), (160, 322250), (200, 257800), (250, 206240), (320, 161125), (400, 128900), (500, 103120), (625, 82496), (800, 64450), (1000, 51560), (1250, 41248), (1289, 40000), (1600, 32225), (2000, 25780), (2500, 20624), (2578, 20000), (4000, 12890), (5000, 10312), (5156, 10000), (6445, 8000)]