317840

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1$

素因数の和:179

約数の個数: 40

約数和(自身を含む): 770040

約数和(自身を除く): 452200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 137, 145, 232, 274, 290, 464, 548, 580, 685, 1096, 1160, 1370, 2192, 2320, 2740, 3973, 5480, 7946, 10960, 15892, 19865, 31784, 39730, 63568, 79460, 158920, 317840]

約数ペア:

[(1, 317840), (2, 158920), (4, 79460), (5, 63568), (8, 39730), (10, 31784), (16, 19865), (20, 15892), (29, 10960), (40, 7946), (58, 5480), (80, 3973), (116, 2740), (137, 2320), (145, 2192), (232, 1370), (274, 1160), (290, 1096), (464, 685), (548, 580)]