320775

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1$

素因数の和:80

約数の個数: 48

約数和(自身を含む): 666624

約数和(自身を除く): 345849

約数列:

[1, 3, 5, 7, 13, 15, 21, 25, 35, 39, 47, 65, 75, 91, 105, 141, 175, 195, 235, 273, 325, 329, 455, 525, 611, 705, 975, 987, 1175, 1365, 1645, 1833, 2275, 3055, 3525, 4277, 4935, 6825, 8225, 9165, 12831, 15275, 21385, 24675, 45825, 64155, 106925, 320775]

約数ペア:

[(1, 320775), (3, 106925), (5, 64155), (7, 45825), (13, 24675), (15, 21385), (21, 15275), (25, 12831), (35, 9165), (39, 8225), (47, 6825), (65, 4935), (75, 4277), (91, 3525), (105, 3055), (141, 2275), (175, 1833), (195, 1645), (235, 1365), (273, 1175), (325, 987), (329, 975), (455, 705), (525, 611)]