280444995

素因数分解:

$3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{1993}}^1$

素因数の和:2116

約数の個数: 48

約数和(自身を含む): 503923680

約数和(自身を除く): 223478685

約数列:

[1, 3, 5, 9, 15, 45, 53, 59, 159, 177, 265, 295, 477, 531, 795, 885, 1993, 2385, 2655, 3127, 5979, 9381, 9965, 15635, 17937, 28143, 29895, 46905, 89685, 105629, 117587, 140715, 316887, 352761, 528145, 587935, 950661, 1058283, 1584435, 1763805, 4753305, 5291415, 6232111, 18696333, 31160555, 56088999, 93481665, 280444995]

約数ペア:

[(1, 280444995), (3, 93481665), (5, 56088999), (9, 31160555), (15, 18696333), (45, 6232111), (53, 5291415), (59, 4753305), (159, 1763805), (177, 1584435), (265, 1058283), (295, 950661), (477, 587935), (531, 528145), (795, 352761), (885, 316887), (1993, 140715), (2385, 117587), (2655, 105629), (3127, 89685), (5979, 46905), (9381, 29895), (9965, 28143), (15635, 17937)]