20795775

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{277}}^1$

素因数の和:321

約数の個数: 96

約数和(自身を含む): 46330368

約数和(自身を除く): 25534593

約数列:

[1, 3, 5, 7, 11, 13, 15, 21, 25, 33, 35, 39, 55, 65, 75, 77, 91, 105, 143, 165, 175, 195, 231, 273, 275, 277, 325, 385, 429, 455, 525, 715, 825, 831, 975, 1001, 1155, 1365, 1385, 1925, 1939, 2145, 2275, 3003, 3047, 3575, 3601, 4155, 5005, 5775, 5817, 6825, 6925, 9141, 9695, 10725, 10803, 15015, 15235, 18005, 20775, 21329, 25025, 25207, 29085, 39611, 45705, 48475, 54015, 63987, 75075, 75621, 76175, 90025, 106645, 118833, 126035, 145425, 198055, 228525, 270075, 277277, 319935, 378105, 533225, 594165, 630175, 831831, 990275, 1386385, 1599675, 1890525, 2970825, 4159155, 6931925, 20795775]

約数ペア:

[(1, 20795775), (3, 6931925), (5, 4159155), (7, 2970825), (11, 1890525), (13, 1599675), (15, 1386385), (21, 990275), (25, 831831), (33, 630175), (35, 594165), (39, 533225), (55, 378105), (65, 319935), (75, 277277), (77, 270075), (91, 228525), (105, 198055), (143, 145425), (165, 126035), (175, 118833), (195, 106645), (231, 90025), (273, 76175), (275, 75621), (277, 75075), (325, 63987), (385, 54015), (429, 48475), (455, 45705), (525, 39611), (715, 29085), (825, 25207), (831, 25025), (975, 21329), (1001, 20775), (1155, 18005), (1365, 15235), (1385, 15015), (1925, 10803), (1939, 10725), (2145, 9695), (2275, 9141), (3003, 6925), (3047, 6825), (3575, 5817), (3601, 5775), (4155, 5005)]