86502820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{11981}}^1$

素因数の和:12028

約数の個数: 36

約数和(自身を含む): 191735964

約数和(自身を除く): 105233144

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 361, 380, 722, 1444, 1805, 3610, 7220, 11981, 23962, 47924, 59905, 119810, 227639, 239620, 455278, 910556, 1138195, 2276390, 4325141, 4552780, 8650282, 17300564, 21625705, 43251410, 86502820]

約数ペア:

[(1, 86502820), (2, 43251410), (4, 21625705), (5, 17300564), (10, 8650282), (19, 4552780), (20, 4325141), (38, 2276390), (76, 1138195), (95, 910556), (190, 455278), (361, 239620), (380, 227639), (722, 119810), (1444, 59905), (1805, 47924), (3610, 23962), (7220, 11981)]