28148445

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{373}}^1$

素因数の和:443

約数の個数: 64

約数和(自身を含む): 55292160

約数和(自身を除く): 27143715

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 43, 45, 65, 117, 129, 135, 195, 215, 351, 373, 387, 559, 585, 645, 1119, 1161, 1677, 1755, 1865, 1935, 2795, 3357, 4849, 5031, 5595, 5805, 8385, 10071, 14547, 15093, 16039, 16785, 24245, 25155, 43641, 48117, 50355, 72735, 75465, 80195, 130923, 144351, 208507, 218205, 240585, 433053, 625521, 654615, 721755, 1042535, 1876563, 2165265, 3127605, 5629689, 9382815, 28148445]

約数ペア:

[(1, 28148445), (3, 9382815), (5, 5629689), (9, 3127605), (13, 2165265), (15, 1876563), (27, 1042535), (39, 721755), (43, 654615), (45, 625521), (65, 433053), (117, 240585), (129, 218205), (135, 208507), (195, 144351), (215, 130923), (351, 80195), (373, 75465), (387, 72735), (559, 50355), (585, 48117), (645, 43641), (1119, 25155), (1161, 24245), (1677, 16785), (1755, 16039), (1865, 15093), (1935, 14547), (2795, 10071), (3357, 8385), (4849, 5805), (5031, 5595)]