128877765

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{229}}^1\times {\mathrm{2207}}^1$

素因数の和:2461

約数の個数: 32

約数和(自身を含む): 219386880

約数和(自身を除く): 90509115

約数列:

[1, 3, 5, 15, 17, 51, 85, 229, 255, 687, 1145, 2207, 3435, 3893, 6621, 11035, 11679, 19465, 33105, 37519, 58395, 112557, 187595, 505403, 562785, 1516209, 2527015, 7581045, 8591851, 25775553, 42959255, 128877765]

約数ペア:

[(1, 128877765), (3, 42959255), (5, 25775553), (15, 8591851), (17, 7581045), (51, 2527015), (85, 1516209), (229, 562785), (255, 505403), (687, 187595), (1145, 112557), (2207, 58395), (3435, 37519), (3893, 33105), (6621, 19465), (11035, 11679)]