20512142728

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{496999}}^1$

素因数の和:497090

約数の個数: 64

約数和(自身を含む): 48666240000

約数和(自身を除く): 28154097272

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 67, 77, 88, 134, 154, 268, 308, 469, 536, 616, 737, 938, 1474, 1876, 2948, 3752, 5159, 5896, 10318, 20636, 41272, 496999, 993998, 1987996, 3478993, 3975992, 5466989, 6957986, 10933978, 13915972, 21867956, 27831944, 33298933, 38268923, 43735912, 66597866, 76537846, 133195732, 153075692, 233092531, 266391464, 306151384, 366288263, 466185062, 732576526, 932370124, 1465153052, 1864740248, 2564017841, 2930306104, 5128035682, 10256071364, 20512142728]

約数ペア:

[(1, 20512142728), (2, 10256071364), (4, 5128035682), (7, 2930306104), (8, 2564017841), (11, 1864740248), (14, 1465153052), (22, 932370124), (28, 732576526), (44, 466185062), (56, 366288263), (67, 306151384), (77, 266391464), (88, 233092531), (134, 153075692), (154, 133195732), (268, 76537846), (308, 66597866), (469, 43735912), (536, 38268923), (616, 33298933), (737, 27831944), (938, 21867956), (1474, 13915972), (1876, 10933978), (2948, 6957986), (3752, 5466989), (5159, 3975992), (5896, 3478993), (10318, 1987996), (20636, 993998), (41272, 496999)]