86408780

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139369}}^1$

素因数の和:139409

約数の個数: 24

約数和(自身を含む): 187313280

約数和(自身を除く): 100904500

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 139369, 278738, 557476, 696845, 1393690, 2787380, 4320439, 8640878, 17281756, 21602195, 43204390, 86408780]

約数ペア:

[(1, 86408780), (2, 43204390), (4, 21602195), (5, 17281756), (10, 8640878), (20, 4320439), (31, 2787380), (62, 1393690), (124, 696845), (155, 557476), (310, 278738), (620, 139369)]