81908460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{455047}}^1$

素因数の和:455062

約数の個数: 36

約数和(自身を含む): 248456208

約数和(自身を除く): 166547748

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 455047, 910094, 1365141, 1820188, 2275235, 2730282, 4095423, 4550470, 5460564, 6825705, 8190846, 9100940, 13651410, 16381692, 20477115, 27302820, 40954230, 81908460]

約数ペア:

[(1, 81908460), (2, 40954230), (3, 27302820), (4, 20477115), (5, 16381692), (6, 13651410), (9, 9100940), (10, 8190846), (12, 6825705), (15, 5460564), (18, 4550470), (20, 4095423), (30, 2730282), (36, 2275235), (45, 1820188), (60, 1365141), (90, 910094), (180, 455047)]