2019011995

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{9839}}^1$

素因数の和:9916

約数の個数: 64

約数和(自身を含む): 3332689920

約数和(自身を除く): 1313677925

約数列:

[1, 5, 7, 11, 13, 35, 41, 55, 65, 77, 91, 143, 205, 287, 385, 451, 455, 533, 715, 1001, 1435, 2255, 2665, 3157, 3731, 5005, 5863, 9839, 15785, 18655, 29315, 41041, 49195, 68873, 108229, 127907, 205205, 344365, 403399, 541145, 639535, 757603, 895349, 1406977, 2016995, 2823793, 3788015, 4437389, 4476745, 5244187, 7034885, 9848839, 14118965, 22186945, 26220935, 31061723, 36709309, 49244195, 57686057, 155308615, 183546545, 288430285, 403802399, 2019011995]

約数ペア:

[(1, 2019011995), (5, 403802399), (7, 288430285), (11, 183546545), (13, 155308615), (35, 57686057), (41, 49244195), (55, 36709309), (65, 31061723), (77, 26220935), (91, 22186945), (143, 14118965), (205, 9848839), (287, 7034885), (385, 5244187), (451, 4476745), (455, 4437389), (533, 3788015), (715, 2823793), (1001, 2016995), (1435, 1406977), (2255, 895349), (2665, 757603), (3157, 639535), (3731, 541145), (5005, 403399), (5863, 344365), (9839, 205205), (15785, 127907), (18655, 108229), (29315, 68873), (41041, 49195)]