80354210

素因数分解:

$2^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{199}}^1\times {\mathrm{271}}^1$

素因数の和:626

約数の個数: 32

約数和(自身を含む): 146880000

約数和(自身を除く): 66525790

約数列:

[1, 2, 5, 10, 149, 199, 271, 298, 398, 542, 745, 995, 1355, 1490, 1990, 2710, 29651, 40379, 53929, 59302, 80758, 107858, 148255, 201895, 269645, 296510, 403790, 539290, 8035421, 16070842, 40177105, 80354210]

約数ペア:

[(1, 80354210), (2, 40177105), (5, 16070842), (10, 8035421), (149, 539290), (199, 403790), (271, 296510), (298, 269645), (398, 201895), (542, 148255), (745, 107858), (995, 80758), (1355, 59302), (1490, 53929), (1990, 40379), (2710, 29651)]