31220105

素因数分解:

$5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{2089}}^1$

素因数の和:2169

約数の個数: 24

約数和(自身を含む): 44316360

約数和(自身を除く): 13096255

約数列:

[1, 5, 7, 35, 49, 61, 245, 305, 427, 2089, 2135, 2989, 10445, 14623, 14945, 73115, 102361, 127429, 511805, 637145, 892003, 4460015, 6244021, 31220105]

約数ペア:

[(1, 31220105), (5, 6244021), (7, 4460015), (35, 892003), (49, 637145), (61, 511805), (245, 127429), (305, 102361), (427, 73115), (2089, 14945), (2135, 14623), (2989, 10445)]