2639955

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{157}}^1$

素因数の和:243

約数の個数: 32

約数和(自身を含む): 4550400

約数和(自身を除く): 1910445

約数列:

[1, 3, 5, 15, 19, 57, 59, 95, 157, 177, 285, 295, 471, 785, 885, 1121, 2355, 2983, 3363, 5605, 8949, 9263, 14915, 16815, 27789, 44745, 46315, 138945, 175997, 527991, 879985, 2639955]

約数ペア:

[(1, 2639955), (3, 879985), (5, 527991), (15, 175997), (19, 138945), (57, 46315), (59, 44745), (95, 27789), (157, 16815), (177, 14915), (285, 9263), (295, 8949), (471, 5605), (785, 3363), (885, 2983), (1121, 2355)]