81253790

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{262109}}^1$

素因数の和:262147

約数の個数: 16

約数和(自身を含む): 150975360

約数和(自身を除く): 69721570

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 262109, 524218, 1310545, 2621090, 8125379, 16250758, 40626895, 81253790]

約数ペア:

[(1, 81253790), (2, 40626895), (5, 16250758), (10, 8125379), (31, 2621090), (62, 1310545), (155, 524218), (310, 262109)]