65405000

素因数分解:

$2^3\times 5^4\times {\mathrm{103}}^1\times {\mathrm{127}}^1$

素因数の和:256

約数の個数: 80

約数和(自身を含む): 155950080

約数和(自身を除く): 90545080

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 103, 125, 127, 200, 206, 250, 254, 412, 500, 508, 515, 625, 635, 824, 1000, 1016, 1030, 1250, 1270, 2060, 2500, 2540, 2575, 3175, 4120, 5000, 5080, 5150, 6350, 10300, 12700, 12875, 13081, 15875, 20600, 25400, 25750, 26162, 31750, 51500, 52324, 63500, 64375, 65405, 79375, 103000, 104648, 127000, 128750, 130810, 158750, 257500, 261620, 317500, 327025, 515000, 523240, 635000, 654050, 1308100, 1635125, 2616200, 3270250, 6540500, 8175625, 13081000, 16351250, 32702500, 65405000]

約数ペア:

[(1, 65405000), (2, 32702500), (4, 16351250), (5, 13081000), (8, 8175625), (10, 6540500), (20, 3270250), (25, 2616200), (40, 1635125), (50, 1308100), (100, 654050), (103, 635000), (125, 523240), (127, 515000), (200, 327025), (206, 317500), (250, 261620), (254, 257500), (412, 158750), (500, 130810), (508, 128750), (515, 127000), (625, 104648), (635, 103000), (824, 79375), (1000, 65405), (1016, 64375), (1030, 63500), (1250, 52324), (1270, 51500), (2060, 31750), (2500, 26162), (2540, 25750), (2575, 25400), (3175, 20600), (4120, 15875), (5000, 13081), (5080, 12875), (5150, 12700), (6350, 10300)]