1278255

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1$

素因数の和:207

約数の個数: 32

約数和(自身を含む): 2285568

約数和(自身を除く): 1007313

約数列:

[1, 3, 5, 11, 15, 33, 55, 61, 127, 165, 183, 305, 381, 635, 671, 915, 1397, 1905, 2013, 3355, 4191, 6985, 7747, 10065, 20955, 23241, 38735, 85217, 116205, 255651, 426085, 1278255]

約数ペア:

[(1, 1278255), (3, 426085), (5, 255651), (11, 116205), (15, 85217), (33, 38735), (55, 23241), (61, 20955), (127, 10065), (165, 7747), (183, 6985), (305, 4191), (381, 3355), (635, 2013), (671, 1905), (915, 1397)]