81103425

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{431}}^1$

素因数の和:650

約数の個数: 48

約数和(自身を含む): 145490688

約数和(自身を除く): 64387263

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 193, 195, 325, 431, 579, 965, 975, 1293, 2155, 2509, 2895, 4825, 5603, 6465, 7527, 10775, 12545, 14475, 16809, 28015, 32325, 37635, 62725, 83183, 84045, 140075, 188175, 249549, 415915, 420225, 1081379, 1247745, 2079575, 3244137, 5406895, 6238725, 16220685, 27034475, 81103425]

約数ペア:

[(1, 81103425), (3, 27034475), (5, 16220685), (13, 6238725), (15, 5406895), (25, 3244137), (39, 2079575), (65, 1247745), (75, 1081379), (193, 420225), (195, 415915), (325, 249549), (431, 188175), (579, 140075), (965, 84045), (975, 83183), (1293, 62725), (2155, 37635), (2509, 32325), (2895, 28015), (4825, 16809), (5603, 14475), (6465, 12545), (7527, 10775)]