12905890178

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{2338871}}^1$

素因数の和:2338993

約数の個数: 16

約数和(自身を含む): 20207854080

約数和(自身を除く): 7301963902

約数列:

[1, 2, 31, 62, 89, 178, 2759, 5518, 2338871, 4677742, 72505001, 145010002, 208159519, 416319038, 6452945089, 12905890178]

約数ペア:

[(1, 12905890178), (2, 6452945089), (31, 416319038), (62, 208159519), (89, 145010002), (178, 72505001), (2759, 4677742), (5518, 2338871)]