663662920

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1\times {\mathrm{2693}}^1$

素因数の和:2866

約数の個数: 64

約数和(自身を含む): 1533317040

約数和(自身を除く): 869654120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 101, 122, 202, 244, 305, 404, 488, 505, 610, 808, 1010, 1220, 2020, 2440, 2693, 4040, 5386, 6161, 10772, 12322, 13465, 21544, 24644, 26930, 30805, 49288, 53860, 61610, 107720, 123220, 164273, 246440, 271993, 328546, 543986, 657092, 821365, 1087972, 1314184, 1359965, 1642730, 2175944, 2719930, 3285460, 5439860, 6570920, 10879720, 16591573, 33183146, 66366292, 82957865, 132732584, 165915730, 331831460, 663662920]

約数ペア:

[(1, 663662920), (2, 331831460), (4, 165915730), (5, 132732584), (8, 82957865), (10, 66366292), (20, 33183146), (40, 16591573), (61, 10879720), (101, 6570920), (122, 5439860), (202, 3285460), (244, 2719930), (305, 2175944), (404, 1642730), (488, 1359965), (505, 1314184), (610, 1087972), (808, 821365), (1010, 657092), (1220, 543986), (2020, 328546), (2440, 271993), (2693, 246440), (4040, 164273), (5386, 123220), (6161, 107720), (10772, 61610), (12322, 53860), (13465, 49288), (21544, 30805), (24644, 26930)]