393490

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{109}}^1$

素因数の和:154

約数の個数: 24

約数和(自身を含む): 754380

約数和(自身を除く): 360890

約数列:

[1, 2, 5, 10, 19, 38, 95, 109, 190, 218, 361, 545, 722, 1090, 1805, 2071, 3610, 4142, 10355, 20710, 39349, 78698, 196745, 393490]

約数ペア:

[(1, 393490), (2, 196745), (5, 78698), (10, 39349), (19, 20710), (38, 10355), (95, 4142), (109, 3610), (190, 2071), (218, 1805), (361, 1090), (545, 722)]