20471335

素因数分解:

$5^1\times {\mathrm{89}}^1\times {\mathrm{179}}^1\times {\mathrm{257}}^1$

素因数の和:530

約数の個数: 16

約数和(自身を含む): 25077600

約数和(自身を除く): 4606265

約数列:

[1, 5, 89, 179, 257, 445, 895, 1285, 15931, 22873, 46003, 79655, 114365, 230015, 4094267, 20471335]

約数ペア:

[(1, 20471335), (5, 4094267), (89, 230015), (179, 114365), (257, 79655), (445, 46003), (895, 22873), (1285, 15931)]