318680258

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{971}}^2$

素因数の和:1970

約数の個数: 18

約数和(自身を含む): 518153337

約数和(自身を除く): 199473079

約数列:

[1, 2, 13, 26, 169, 338, 971, 1942, 12623, 25246, 164099, 328198, 942841, 1885682, 12256933, 24513866, 159340129, 318680258]

約数ペア:

[(1, 318680258), (2, 159340129), (13, 24513866), (26, 12256933), (169, 1885682), (338, 942841), (971, 328198), (1942, 164099), (12623, 25246)]