20686016

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{47}}^1$

素因数の和:118

約数の個数: 84

約数和(自身を含む): 47195232

約数和(自身を除く): 26509216

約数列:

[1, 2, 4, 8, 13, 16, 23, 26, 32, 46, 47, 52, 64, 92, 94, 104, 184, 188, 208, 299, 368, 376, 416, 529, 598, 611, 736, 752, 832, 1058, 1081, 1196, 1222, 1472, 1504, 2116, 2162, 2392, 2444, 3008, 4232, 4324, 4784, 4888, 6877, 8464, 8648, 9568, 9776, 13754, 14053, 16928, 17296, 19136, 19552, 24863, 27508, 28106, 33856, 34592, 39104, 49726, 55016, 56212, 69184, 99452, 110032, 112424, 198904, 220064, 224848, 323219, 397808, 440128, 449696, 646438, 795616, 899392, 1292876, 1591232, 2585752, 5171504, 10343008, 20686016]

約数ペア:

[(1, 20686016), (2, 10343008), (4, 5171504), (8, 2585752), (13, 1591232), (16, 1292876), (23, 899392), (26, 795616), (32, 646438), (46, 449696), (47, 440128), (52, 397808), (64, 323219), (92, 224848), (94, 220064), (104, 198904), (184, 112424), (188, 110032), (208, 99452), (299, 69184), (368, 56212), (376, 55016), (416, 49726), (529, 39104), (598, 34592), (611, 33856), (736, 28106), (752, 27508), (832, 24863), (1058, 19552), (1081, 19136), (1196, 17296), (1222, 16928), (1472, 14053), (1504, 13754), (2116, 9776), (2162, 9568), (2392, 8648), (2444, 8464), (3008, 6877), (4232, 4888), (4324, 4784)]