18395260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{509}}^1$

素因数の和:670

約数の個数: 48

約数和(自身を含む): 41983200

約数和(自身を除く): 23587940

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 139, 260, 278, 509, 556, 695, 1018, 1390, 1807, 2036, 2545, 2780, 3614, 5090, 6617, 7228, 9035, 10180, 13234, 18070, 26468, 33085, 36140, 66170, 70751, 132340, 141502, 283004, 353755, 707510, 919763, 1415020, 1839526, 3679052, 4598815, 9197630, 18395260]

約数ペア:

[(1, 18395260), (2, 9197630), (4, 4598815), (5, 3679052), (10, 1839526), (13, 1415020), (20, 919763), (26, 707510), (52, 353755), (65, 283004), (130, 141502), (139, 132340), (260, 70751), (278, 66170), (509, 36140), (556, 33085), (695, 26468), (1018, 18070), (1390, 13234), (1807, 10180), (2036, 9035), (2545, 7228), (2780, 6617), (3614, 5090)]