18215015

素因数分解:

$5^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1$

素因数の和:101

約数の個数: 64

約数和(自身を含む): 29568000

約数和(自身を除く): 11352985

約数列:

[1, 5, 7, 13, 19, 35, 43, 49, 65, 91, 95, 133, 215, 245, 247, 301, 343, 455, 559, 637, 665, 817, 931, 1235, 1505, 1715, 1729, 2107, 2795, 3185, 3913, 4085, 4459, 4655, 5719, 6517, 8645, 10535, 10621, 12103, 14749, 19565, 22295, 27391, 28595, 32585, 40033, 53105, 60515, 73745, 74347, 84721, 136955, 191737, 200165, 280231, 371735, 423605, 520429, 958685, 1401155, 2602145, 3643003, 18215015]

約数ペア:

[(1, 18215015), (5, 3643003), (7, 2602145), (13, 1401155), (19, 958685), (35, 520429), (43, 423605), (49, 371735), (65, 280231), (91, 200165), (95, 191737), (133, 136955), (215, 84721), (245, 74347), (247, 73745), (301, 60515), (343, 53105), (455, 40033), (559, 32585), (637, 28595), (665, 27391), (817, 22295), (931, 19565), (1235, 14749), (1505, 12103), (1715, 10621), (1729, 10535), (2107, 8645), (2795, 6517), (3185, 5719), (3913, 4655), (4085, 4459)]