221465275

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{599}}^1\times {\mathrm{643}}^1$

素因数の和:1275

約数の個数: 24

約数和(自身を含む): 287481600

約数和(自身を除く): 66016325

約数列:

[1, 5, 23, 25, 115, 575, 599, 643, 2995, 3215, 13777, 14789, 14975, 16075, 68885, 73945, 344425, 369725, 385157, 1925785, 8858611, 9628925, 44293055, 221465275]

約数ペア:

[(1, 221465275), (5, 44293055), (23, 9628925), (25, 8858611), (115, 1925785), (575, 385157), (599, 369725), (643, 344425), (2995, 73945), (3215, 68885), (13777, 16075), (14789, 14975)]