87840890

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{111191}}^1$

素因数の和:111277

約数の個数: 16

約数和(自身を含む): 160116480

約数和(自身を除く): 72275590

約数列:

[1, 2, 5, 10, 79, 158, 395, 790, 111191, 222382, 555955, 1111910, 8784089, 17568178, 43920445, 87840890]

約数ペア:

[(1, 87840890), (2, 43920445), (5, 17568178), (10, 8784089), (79, 1111910), (158, 555955), (395, 222382), (790, 111191)]