31187265

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1$

素因数の和:242

約数の個数: 64

約数和(自身を含む): 57335040

約数和(自身を除く): 26147775

約数列:

[1, 3, 5, 15, 17, 19, 41, 51, 57, 85, 95, 123, 157, 205, 255, 285, 323, 471, 615, 697, 779, 785, 969, 1615, 2091, 2337, 2355, 2669, 2983, 3485, 3895, 4845, 6437, 8007, 8949, 10455, 11685, 13243, 13345, 14915, 19311, 32185, 39729, 40035, 44745, 50711, 66215, 96555, 109429, 122303, 152133, 198645, 253555, 328287, 366909, 547145, 611515, 760665, 1641435, 1834545, 2079151, 6237453, 10395755, 31187265]

約数ペア:

[(1, 31187265), (3, 10395755), (5, 6237453), (15, 2079151), (17, 1834545), (19, 1641435), (41, 760665), (51, 611515), (57, 547145), (85, 366909), (95, 328287), (123, 253555), (157, 198645), (205, 152133), (255, 122303), (285, 109429), (323, 96555), (471, 66215), (615, 50711), (697, 44745), (779, 40035), (785, 39729), (969, 32185), (1615, 19311), (2091, 14915), (2337, 13345), (2355, 13243), (2669, 11685), (2983, 10455), (3485, 8949), (3895, 8007), (4845, 6437)]