28725505

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1$

素因数の和:265

約数の個数: 32

約数和(自身を含む): 38041344

約数和(自身を除く): 9315839

約数列:

[1, 5, 23, 37, 43, 115, 157, 185, 215, 785, 851, 989, 1591, 3611, 4255, 4945, 5809, 6751, 7955, 18055, 29045, 33755, 36593, 133607, 155273, 182965, 249787, 668035, 776365, 1248935, 5745101, 28725505]

約数ペア:

[(1, 28725505), (5, 5745101), (23, 1248935), (37, 776365), (43, 668035), (115, 249787), (157, 182965), (185, 155273), (215, 133607), (785, 36593), (851, 33755), (989, 29045), (1591, 18055), (3611, 7955), (4255, 6751), (4945, 5809)]