156987890

素因数分解:

$2^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{105361}}^1$

素因数の和:105517

約数の個数: 16

約数和(自身を含む): 284477400

約数和(自身を除く): 127489510

約数列:

[1, 2, 5, 10, 149, 298, 745, 1490, 105361, 210722, 526805, 1053610, 15698789, 31397578, 78493945, 156987890]

約数ペア:

[(1, 156987890), (2, 78493945), (5, 31397578), (10, 15698789), (149, 1053610), (298, 526805), (745, 210722), (1490, 105361)]