16204475

素因数分解:

$5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1$

素因数の和:180

約数の個数: 48

約数和(自身を含む): 24760320

約数和(自身を除く): 8555845

約数列:

[1, 5, 7, 25, 29, 31, 35, 103, 145, 155, 175, 203, 217, 515, 721, 725, 775, 899, 1015, 1085, 2575, 2987, 3193, 3605, 4495, 5075, 5425, 6293, 14935, 15965, 18025, 20909, 22351, 22475, 31465, 74675, 79825, 92597, 104545, 111755, 157325, 462985, 522725, 558775, 648179, 2314925, 3240895, 16204475]

約数ペア:

[(1, 16204475), (5, 3240895), (7, 2314925), (25, 648179), (29, 558775), (31, 522725), (35, 462985), (103, 157325), (145, 111755), (155, 104545), (175, 92597), (203, 79825), (217, 74675), (515, 31465), (721, 22475), (725, 22351), (775, 20909), (899, 18025), (1015, 15965), (1085, 14935), (2575, 6293), (2987, 5425), (3193, 5075), (3605, 4495)]