20480824

素因数分解:

$2^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{4019}}^1$

素因数の和:4052

約数の個数: 48

約数和(自身を含む): 48119400

約数和(自身を除く): 27638576

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 49, 52, 56, 91, 98, 104, 182, 196, 364, 392, 637, 728, 1274, 2548, 4019, 5096, 8038, 16076, 28133, 32152, 52247, 56266, 104494, 112532, 196931, 208988, 225064, 365729, 393862, 417976, 731458, 787724, 1462916, 1575448, 2560103, 2925832, 5120206, 10240412, 20480824]

約数ペア:

[(1, 20480824), (2, 10240412), (4, 5120206), (7, 2925832), (8, 2560103), (13, 1575448), (14, 1462916), (26, 787724), (28, 731458), (49, 417976), (52, 393862), (56, 365729), (91, 225064), (98, 208988), (104, 196931), (182, 112532), (196, 104494), (364, 56266), (392, 52247), (637, 32152), (728, 28133), (1274, 16076), (2548, 8038), (4019, 5096)]