81504108

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{503}}^1\times {\mathrm{643}}^1$

素因数の和:1163

約数の個数: 72

約数和(自身を含む): 236291328

約数和(自身を除く): 154787220

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 503, 643, 1006, 1286, 1509, 1929, 2012, 2572, 3018, 3521, 3858, 4501, 4527, 5787, 6036, 7042, 7716, 9002, 9054, 10563, 11574, 13503, 14084, 18004, 18108, 21126, 23148, 27006, 31689, 40509, 42252, 54012, 63378, 81018, 126756, 162036, 323429, 646858, 970287, 1293716, 1940574, 2264003, 2910861, 3881148, 4528006, 5821722, 6792009, 9056012, 11643444, 13584018, 20376027, 27168036, 40752054, 81504108]

約数ペア:

[(1, 81504108), (2, 40752054), (3, 27168036), (4, 20376027), (6, 13584018), (7, 11643444), (9, 9056012), (12, 6792009), (14, 5821722), (18, 4528006), (21, 3881148), (28, 2910861), (36, 2264003), (42, 1940574), (63, 1293716), (84, 970287), (126, 646858), (252, 323429), (503, 162036), (643, 126756), (1006, 81018), (1286, 63378), (1509, 54012), (1929, 42252), (2012, 40509), (2572, 31689), (3018, 27006), (3521, 23148), (3858, 21126), (4501, 18108), (4527, 18004), (5787, 14084), (6036, 13503), (7042, 11574), (7716, 10563), (9002, 9054)]