1987735678

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{271}}^1\times {\mathrm{89449}}^1$

素因数の和:89763

約数の個数: 16

約数和(自身を含む): 3065630400

約数和(自身を除く): 1077894722

約数列:

[1, 2, 41, 82, 271, 542, 11111, 22222, 89449, 178898, 3667409, 7334818, 24240679, 48481358, 993867839, 1987735678]

約数ペア:

[(1, 1987735678), (2, 993867839), (41, 48481358), (82, 24240679), (271, 7334818), (542, 3667409), (11111, 178898), (22222, 89449)]