1280455

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{751}}^1$

素因数の和:798

約数の個数: 16

約数和(自身を含む): 1732608

約数和(自身を除く): 452153

約数列:

[1, 5, 11, 31, 55, 155, 341, 751, 1705, 3755, 8261, 23281, 41305, 116405, 256091, 1280455]

約数ペア:

[(1, 1280455), (5, 256091), (11, 116405), (31, 41305), (55, 23281), (155, 8261), (341, 3755), (751, 1705)]