20416536

素因数分解:

$2^3\times 3^4\times 7^2\times {\mathrm{643}}^1$

素因数の和:675

約数の個数: 120

約数和(自身を含む): 66625020

約数和(自身を除く): 46208484

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 49, 54, 56, 63, 72, 81, 84, 98, 108, 126, 147, 162, 168, 189, 196, 216, 252, 294, 324, 378, 392, 441, 504, 567, 588, 643, 648, 756, 882, 1134, 1176, 1286, 1323, 1512, 1764, 1929, 2268, 2572, 2646, 3528, 3858, 3969, 4501, 4536, 5144, 5292, 5787, 7716, 7938, 9002, 10584, 11574, 13503, 15432, 15876, 17361, 18004, 23148, 27006, 31507, 31752, 34722, 36008, 40509, 46296, 52083, 54012, 63014, 69444, 81018, 94521, 104166, 108024, 121527, 126028, 138888, 162036, 189042, 208332, 243054, 252056, 283563, 324072, 364581, 378084, 416664, 486108, 567126, 729162, 756168, 850689, 972216, 1134252, 1458324, 1701378, 2268504, 2552067, 2916648, 3402756, 5104134, 6805512, 10208268, 20416536]

約数ペア:

[(1, 20416536), (2, 10208268), (3, 6805512), (4, 5104134), (6, 3402756), (7, 2916648), (8, 2552067), (9, 2268504), (12, 1701378), (14, 1458324), (18, 1134252), (21, 972216), (24, 850689), (27, 756168), (28, 729162), (36, 567126), (42, 486108), (49, 416664), (54, 378084), (56, 364581), (63, 324072), (72, 283563), (81, 252056), (84, 243054), (98, 208332), (108, 189042), (126, 162036), (147, 138888), (162, 126028), (168, 121527), (189, 108024), (196, 104166), (216, 94521), (252, 81018), (294, 69444), (324, 63014), (378, 54012), (392, 52083), (441, 46296), (504, 40509), (567, 36008), (588, 34722), (643, 31752), (648, 31507), (756, 27006), (882, 23148), (1134, 18004), (1176, 17361), (1286, 15876), (1323, 15432), (1512, 13503), (1764, 11574), (1929, 10584), (2268, 9002), (2572, 7938), (2646, 7716), (3528, 5787), (3858, 5292), (3969, 5144), (4501, 4536)]