81404715

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{5659}}^1$

素因数の和:5811

約数の個数: 32

約数和(自身を含む): 149967360

約数和(自身を除く): 68562645

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 137, 411, 685, 959, 2055, 2877, 4795, 5659, 14385, 16977, 28295, 39613, 84885, 118839, 198065, 594195, 775283, 2325849, 3876415, 5426981, 11629245, 16280943, 27134905, 81404715]

約数ペア:

[(1, 81404715), (3, 27134905), (5, 16280943), (7, 11629245), (15, 5426981), (21, 3876415), (35, 2325849), (105, 775283), (137, 594195), (411, 198065), (685, 118839), (959, 84885), (2055, 39613), (2877, 28295), (4795, 16977), (5659, 14385)]