193647620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{26821}}^1$

素因数の和:26868

約数の個数: 36

約数和(自身を含む): 429205644

約数和(自身を除く): 235558024

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 361, 380, 722, 1444, 1805, 3610, 7220, 26821, 53642, 107284, 134105, 268210, 509599, 536420, 1019198, 2038396, 2547995, 5095990, 9682381, 10191980, 19364762, 38729524, 48411905, 96823810, 193647620]

約数ペア:

[(1, 193647620), (2, 96823810), (4, 48411905), (5, 38729524), (10, 19364762), (19, 10191980), (20, 9682381), (38, 5095990), (76, 2547995), (95, 2038396), (190, 1019198), (361, 536420), (380, 509599), (722, 268210), (1444, 134105), (1805, 107284), (3610, 53642), (7220, 26821)]