27758025

素因数分解:

$3^3\times 5^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1$

素因数の和:136

約数の個数: 96

約数和(自身を含む): 56246400

約数和(自身を除く): 28488375

約数列:

[1, 3, 5, 9, 15, 17, 25, 27, 41, 45, 51, 59, 75, 85, 123, 135, 153, 177, 205, 225, 255, 295, 369, 425, 459, 531, 615, 675, 697, 765, 885, 1003, 1025, 1107, 1275, 1475, 1593, 1845, 2091, 2295, 2419, 2655, 3009, 3075, 3485, 3825, 4425, 5015, 5535, 6273, 7257, 7965, 9027, 9225, 10455, 11475, 12095, 13275, 15045, 17425, 18819, 21771, 25075, 27081, 27675, 31365, 36285, 39825, 41123, 45135, 52275, 60475, 65313, 75225, 94095, 108855, 123369, 135405, 156825, 181425, 205615, 225675, 326565, 370107, 470475, 544275, 616845, 677025, 1028075, 1110321, 1632825, 1850535, 3084225, 5551605, 9252675, 27758025]

約数ペア:

[(1, 27758025), (3, 9252675), (5, 5551605), (9, 3084225), (15, 1850535), (17, 1632825), (25, 1110321), (27, 1028075), (41, 677025), (45, 616845), (51, 544275), (59, 470475), (75, 370107), (85, 326565), (123, 225675), (135, 205615), (153, 181425), (177, 156825), (205, 135405), (225, 123369), (255, 108855), (295, 94095), (369, 75225), (425, 65313), (459, 60475), (531, 52275), (615, 45135), (675, 41123), (697, 39825), (765, 36285), (885, 31365), (1003, 27675), (1025, 27081), (1107, 25075), (1275, 21771), (1475, 18819), (1593, 17425), (1845, 15045), (2091, 13275), (2295, 12095), (2419, 11475), (2655, 10455), (3009, 9225), (3075, 9027), (3485, 7965), (3825, 7257), (4425, 6273), (5015, 5535)]