278313915

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{113}}^1$

素因数の和:225

約数の個数: 96

約数和(自身を含む): 523998720

約数和(自身を除く): 245684805

約数列:

[1, 3, 5, 11, 15, 23, 33, 55, 59, 69, 113, 115, 121, 165, 177, 253, 295, 339, 345, 363, 565, 605, 649, 759, 885, 1243, 1265, 1357, 1695, 1815, 1947, 2599, 2783, 3245, 3729, 3795, 4071, 6215, 6667, 6785, 7139, 7797, 8349, 9735, 12995, 13673, 13915, 14927, 18645, 20001, 20355, 21417, 28589, 33335, 35695, 38985, 41019, 41745, 44781, 68365, 73337, 74635, 85767, 100005, 107085, 142945, 153341, 164197, 205095, 220011, 223905, 314479, 366685, 428835, 460023, 492591, 766705, 806707, 820985, 943437, 1100055, 1572395, 1686751, 2300115, 2420121, 2462955, 4033535, 4717185, 5060253, 8433755, 12100605, 18554261, 25301265, 55662783, 92771305, 278313915]

約数ペア:

[(1, 278313915), (3, 92771305), (5, 55662783), (11, 25301265), (15, 18554261), (23, 12100605), (33, 8433755), (55, 5060253), (59, 4717185), (69, 4033535), (113, 2462955), (115, 2420121), (121, 2300115), (165, 1686751), (177, 1572395), (253, 1100055), (295, 943437), (339, 820985), (345, 806707), (363, 766705), (565, 492591), (605, 460023), (649, 428835), (759, 366685), (885, 314479), (1243, 223905), (1265, 220011), (1357, 205095), (1695, 164197), (1815, 153341), (1947, 142945), (2599, 107085), (2783, 100005), (3245, 85767), (3729, 74635), (3795, 73337), (4071, 68365), (6215, 44781), (6667, 41745), (6785, 41019), (7139, 38985), (7797, 35695), (8349, 33335), (9735, 28589), (12995, 21417), (13673, 20355), (13915, 20001), (14927, 18645)]