18000015

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^2\times {\mathrm{59}}^1$

素因数の和:164

約数の個数: 48

約数和(自身を含む): 32711040

約数和(自身を除く): 14711025

約数列:

[1, 3, 5, 11, 15, 33, 43, 55, 59, 129, 165, 177, 215, 295, 473, 645, 649, 885, 1419, 1849, 1947, 2365, 2537, 3245, 5547, 7095, 7611, 9245, 9735, 12685, 20339, 27735, 27907, 38055, 61017, 83721, 101695, 109091, 139535, 305085, 327273, 418605, 545455, 1200001, 1636365, 3600003, 6000005, 18000015]

約数ペア:

[(1, 18000015), (3, 6000005), (5, 3600003), (11, 1636365), (15, 1200001), (33, 545455), (43, 418605), (55, 327273), (59, 305085), (129, 139535), (165, 109091), (177, 101695), (215, 83721), (295, 61017), (473, 38055), (645, 27907), (649, 27735), (885, 20339), (1419, 12685), (1849, 9735), (1947, 9245), (2365, 7611), (2537, 7095), (3245, 5547)]