138899505

素因数分解:

$3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{257}}^1\times {\mathrm{263}}^1$

素因数の和:665

約数の個数: 32

約数和(自身を含む): 225586944

約数和(自身を除く): 86687439

約数列:

[1, 3, 5, 15, 137, 257, 263, 411, 685, 771, 789, 1285, 1315, 2055, 3855, 3945, 35209, 36031, 67591, 105627, 108093, 176045, 180155, 202773, 337955, 528135, 540465, 1013865, 9259967, 27779901, 46299835, 138899505]

約数ペア:

[(1, 138899505), (3, 46299835), (5, 27779901), (15, 9259967), (137, 1013865), (257, 540465), (263, 528135), (411, 337955), (685, 202773), (771, 180155), (789, 176045), (1285, 108093), (1315, 105627), (2055, 67591), (3855, 36031), (3945, 35209)]