81818275

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2237}}^1$

素因数の和:2284

約数の個数: 48

約数和(自身を含む): 133205760

約数和(自身を除く): 51387485

約数列:

[1, 5, 7, 11, 19, 25, 35, 55, 77, 95, 133, 175, 209, 275, 385, 475, 665, 1045, 1463, 1925, 2237, 3325, 5225, 7315, 11185, 15659, 24607, 36575, 42503, 55925, 78295, 123035, 172249, 212515, 297521, 391475, 467533, 615175, 861245, 1062575, 1487605, 2337665, 3272731, 4306225, 7438025, 11688325, 16363655, 81818275]

約数ペア:

[(1, 81818275), (5, 16363655), (7, 11688325), (11, 7438025), (19, 4306225), (25, 3272731), (35, 2337665), (55, 1487605), (77, 1062575), (95, 861245), (133, 615175), (175, 467533), (209, 391475), (275, 297521), (385, 212515), (475, 172249), (665, 123035), (1045, 78295), (1463, 55925), (1925, 42503), (2237, 36575), (3325, 24607), (5225, 15659), (7315, 11185)]