20295890

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{1117}}^1$

素因数の和:1226

約数の個数: 32

約数和(自身を含む): 38638080

約数和(自身を除く): 18342190

約数列:

[1, 2, 5, 10, 23, 46, 79, 115, 158, 230, 395, 790, 1117, 1817, 2234, 3634, 5585, 9085, 11170, 18170, 25691, 51382, 88243, 128455, 176486, 256910, 441215, 882430, 2029589, 4059178, 10147945, 20295890]

約数ペア:

[(1, 20295890), (2, 10147945), (5, 4059178), (10, 2029589), (23, 882430), (46, 441215), (79, 256910), (115, 176486), (158, 128455), (230, 88243), (395, 51382), (790, 25691), (1117, 18170), (1817, 11170), (2234, 9085), (3634, 5585)]