81850915

素因数分解:

$5^1\times {\mathrm{149}}^1\times {\mathrm{181}}^1\times {\mathrm{607}}^1$

素因数の和:942

約数の個数: 16

約数和(自身を含む): 99590400

約数和(自身を除く): 17739485

約数列:

[1, 5, 149, 181, 607, 745, 905, 3035, 26969, 90443, 109867, 134845, 452215, 549335, 16370183, 81850915]

約数ペア:

[(1, 81850915), (5, 16370183), (149, 549335), (181, 452215), (607, 134845), (745, 109867), (905, 90443), (3035, 26969)]