18258255

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{823}}^1$

素因数の和:880

約数の個数: 48

約数和(自身を含む): 34706880

約数和(自身を除く): 16448625

約数列:

[1, 3, 5, 9, 15, 17, 29, 45, 51, 85, 87, 145, 153, 255, 261, 435, 493, 765, 823, 1305, 1479, 2465, 2469, 4115, 4437, 7395, 7407, 12345, 13991, 22185, 23867, 37035, 41973, 69955, 71601, 119335, 125919, 209865, 214803, 358005, 405739, 629595, 1074015, 1217217, 2028695, 3651651, 6086085, 18258255]

約数ペア:

[(1, 18258255), (3, 6086085), (5, 3651651), (9, 2028695), (15, 1217217), (17, 1074015), (29, 629595), (45, 405739), (51, 358005), (85, 214803), (87, 209865), (145, 125919), (153, 119335), (255, 71601), (261, 69955), (435, 41973), (493, 37035), (765, 23867), (823, 22185), (1305, 13991), (1479, 12345), (2465, 7407), (2469, 7395), (4115, 4437)]