2019959920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{120811}}^1$

素因数の和:120854

約数の個数: 80

約数和(自身を含む): 5393047680

約数和(自身を除く): 3373087760

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 38, 40, 44, 55, 76, 80, 88, 95, 110, 152, 176, 190, 209, 220, 304, 380, 418, 440, 760, 836, 880, 1045, 1520, 1672, 2090, 3344, 4180, 8360, 16720, 120811, 241622, 483244, 604055, 966488, 1208110, 1328921, 1932976, 2295409, 2416220, 2657842, 4590818, 4832440, 5315684, 6644605, 9181636, 9664880, 10631368, 11477045, 13289210, 18363272, 21262736, 22954090, 25249499, 26578420, 36726544, 45908180, 50498998, 53156840, 91816360, 100997996, 106313680, 126247495, 183632720, 201995992, 252494990, 403991984, 504989980, 1009979960, 2019959920]

約数ペア:

[(1, 2019959920), (2, 1009979960), (4, 504989980), (5, 403991984), (8, 252494990), (10, 201995992), (11, 183632720), (16, 126247495), (19, 106313680), (20, 100997996), (22, 91816360), (38, 53156840), (40, 50498998), (44, 45908180), (55, 36726544), (76, 26578420), (80, 25249499), (88, 22954090), (95, 21262736), (110, 18363272), (152, 13289210), (176, 11477045), (190, 10631368), (209, 9664880), (220, 9181636), (304, 6644605), (380, 5315684), (418, 4832440), (440, 4590818), (760, 2657842), (836, 2416220), (880, 2295409), (1045, 1932976), (1520, 1328921), (1672, 1208110), (2090, 966488), (3344, 604055), (4180, 483244), (8360, 241622), (16720, 120811)]