128654911

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{233}}^1$

素因数の和:423

約数の個数: 32

約数和(自身を含む): 164975616

約数和(自身を除く): 36320705

約数列:

[1, 7, 11, 71, 77, 101, 233, 497, 707, 781, 1111, 1631, 2563, 5467, 7171, 7777, 16543, 17941, 23533, 50197, 78881, 115801, 164731, 181973, 258863, 552167, 1273811, 1670843, 1812041, 11695901, 18379273, 128654911]

約数ペア:

[(1, 128654911), (7, 18379273), (11, 11695901), (71, 1812041), (77, 1670843), (101, 1273811), (233, 552167), (497, 258863), (707, 181973), (781, 164731), (1111, 115801), (1631, 78881), (2563, 50197), (5467, 23533), (7171, 17941), (7777, 16543)]