2789865

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1$

素因数の和:294

約数の個数: 48

約数和(自身を含む): 5503680

約数和(自身を除く): 2713815

約数列:

[1, 3, 5, 9, 13, 15, 19, 39, 45, 57, 65, 95, 117, 171, 195, 247, 251, 285, 585, 741, 753, 855, 1235, 1255, 2223, 2259, 3263, 3705, 3765, 4769, 9789, 11115, 11295, 14307, 16315, 23845, 29367, 42921, 48945, 61997, 71535, 146835, 185991, 214605, 309985, 557973, 929955, 2789865]

約数ペア:

[(1, 2789865), (3, 929955), (5, 557973), (9, 309985), (13, 214605), (15, 185991), (19, 146835), (39, 71535), (45, 61997), (57, 48945), (65, 42921), (95, 29367), (117, 23845), (171, 16315), (195, 14307), (247, 11295), (251, 11115), (285, 9789), (585, 4769), (741, 3765), (753, 3705), (855, 3263), (1235, 2259), (1255, 2223)]