12980275

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{613}}^1$

素因数の和:652

約数の個数: 36

約数和(自身を含む): 20252176

約数和(自身を除く): 7271901

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 121, 175, 275, 385, 605, 613, 847, 1925, 3025, 3065, 4235, 4291, 6743, 15325, 21175, 21455, 33715, 47201, 74173, 107275, 168575, 236005, 370865, 519211, 1180025, 1854325, 2596055, 12980275]

約数ペア:

[(1, 12980275), (5, 2596055), (7, 1854325), (11, 1180025), (25, 519211), (35, 370865), (55, 236005), (77, 168575), (121, 107275), (175, 74173), (275, 47201), (385, 33715), (605, 21455), (613, 21175), (847, 15325), (1925, 6743), (3025, 4291), (3065, 4235)]