20585565

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{457}}^1$

素因数の和:499

約数の個数: 96

約数和(自身を含む): 48013056

約数和(自身を除く): 27427491

約数列:

[1, 3, 5, 7, 9, 11, 13, 15, 21, 33, 35, 39, 45, 55, 63, 65, 77, 91, 99, 105, 117, 143, 165, 195, 231, 273, 315, 385, 429, 455, 457, 495, 585, 693, 715, 819, 1001, 1155, 1287, 1365, 1371, 2145, 2285, 3003, 3199, 3465, 4095, 4113, 5005, 5027, 5941, 6435, 6855, 9009, 9597, 15015, 15081, 15995, 17823, 20565, 25135, 28791, 29705, 35189, 41587, 45045, 45243, 47985, 53469, 65351, 75405, 89115, 105567, 124761, 143955, 175945, 196053, 207935, 226215, 267345, 316701, 326755, 374283, 457457, 527835, 588159, 623805, 980265, 1372371, 1583505, 1871415, 2287285, 2940795, 4117113, 6861855, 20585565]

約数ペア:

[(1, 20585565), (3, 6861855), (5, 4117113), (7, 2940795), (9, 2287285), (11, 1871415), (13, 1583505), (15, 1372371), (21, 980265), (33, 623805), (35, 588159), (39, 527835), (45, 457457), (55, 374283), (63, 326755), (65, 316701), (77, 267345), (91, 226215), (99, 207935), (105, 196053), (117, 175945), (143, 143955), (165, 124761), (195, 105567), (231, 89115), (273, 75405), (315, 65351), (385, 53469), (429, 47985), (455, 45243), (457, 45045), (495, 41587), (585, 35189), (693, 29705), (715, 28791), (819, 25135), (1001, 20565), (1155, 17823), (1287, 15995), (1365, 15081), (1371, 15015), (2145, 9597), (2285, 9009), (3003, 6855), (3199, 6435), (3465, 5941), (4095, 5027), (4113, 5005)]