129129988

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{15817}}^1$

素因数の和:15991

約数の個数: 24

約数和(自身を含む): 244925912

約数和(自身を除く): 115795924

約数列:

[1, 2, 4, 13, 26, 52, 157, 314, 628, 2041, 4082, 8164, 15817, 31634, 63268, 205621, 411242, 822484, 2483269, 4966538, 9933076, 32282497, 64564994, 129129988]

約数ペア:

[(1, 129129988), (2, 64564994), (4, 32282497), (13, 9933076), (26, 4966538), (52, 2483269), (157, 822484), (314, 411242), (628, 205621), (2041, 63268), (4082, 31634), (8164, 15817)]