20216896336

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1993}}^1\times {\mathrm{6967}}^1$

素因数の和:8988

約数の個数: 80

約数和(自身を含む): 48240634624

約数和(自身を除く): 28023738288

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 1993, 3986, 6967, 7972, 13934, 13951, 15944, 25909, 27868, 27902, 31888, 48769, 51818, 55736, 55804, 90571, 97538, 103636, 111472, 111608, 181142, 181363, 195076, 207272, 223216, 362284, 362726, 390152, 414544, 633997, 724568, 725452, 780304, 1267994, 1449136, 1450904, 2535988, 2901808, 5071976, 10143952, 13885231, 27770462, 55540924, 97196617, 111081848, 180508003, 194393234, 222163696, 361016006, 388786468, 722032012, 777572936, 1263556021, 1444064024, 1555145872, 2527112042, 2888128048, 5054224084, 10108448168, 20216896336]

約数ペア:

[(1, 20216896336), (2, 10108448168), (4, 5054224084), (7, 2888128048), (8, 2527112042), (13, 1555145872), (14, 1444064024), (16, 1263556021), (26, 777572936), (28, 722032012), (52, 388786468), (56, 361016006), (91, 222163696), (104, 194393234), (112, 180508003), (182, 111081848), (208, 97196617), (364, 55540924), (728, 27770462), (1456, 13885231), (1993, 10143952), (3986, 5071976), (6967, 2901808), (7972, 2535988), (13934, 1450904), (13951, 1449136), (15944, 1267994), (25909, 780304), (27868, 725452), (27902, 724568), (31888, 633997), (48769, 414544), (51818, 390152), (55736, 362726), (55804, 362284), (90571, 223216), (97538, 207272), (103636, 195076), (111472, 181363), (111608, 181142)]