638420146

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{239}}^1\times {\mathrm{1129}}^1$

素因数の和:1403

約数の個数: 48

約数和(自身を含む): 1191110400

約数和(自身を除く): 552690254

約数列:

[1, 2, 7, 13, 14, 26, 91, 169, 182, 239, 338, 478, 1129, 1183, 1673, 2258, 2366, 3107, 3346, 6214, 7903, 14677, 15806, 21749, 29354, 40391, 43498, 80782, 102739, 190801, 205478, 269831, 282737, 381602, 539662, 565474, 1335607, 1888817, 2671214, 3507803, 3777634, 7015606, 24554621, 45601439, 49109242, 91202878, 319210073, 638420146]

約数ペア:

[(1, 638420146), (2, 319210073), (7, 91202878), (13, 49109242), (14, 45601439), (26, 24554621), (91, 7015606), (169, 3777634), (182, 3507803), (239, 2671214), (338, 1888817), (478, 1335607), (1129, 565474), (1183, 539662), (1673, 381602), (2258, 282737), (2366, 269831), (3107, 205478), (3346, 190801), (6214, 102739), (7903, 80782), (14677, 43498), (15806, 40391), (21749, 29354)]