18808212880

素因数分解:

$2^4\times 5^1\times {\mathrm{1019}}^1\times {\mathrm{230719}}^1$

素因数の和:231751

約数の個数: 40

約数和(自身を含む): 43772198400

約数和(自身を除く): 24963985520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1019, 2038, 4076, 5095, 8152, 10190, 16304, 20380, 40760, 81520, 230719, 461438, 922876, 1153595, 1845752, 2307190, 3691504, 4614380, 9228760, 18457520, 235102661, 470205322, 940410644, 1175513305, 1880821288, 2351026610, 3761642576, 4702053220, 9404106440, 18808212880]

約数ペア:

[(1, 18808212880), (2, 9404106440), (4, 4702053220), (5, 3761642576), (8, 2351026610), (10, 1880821288), (16, 1175513305), (20, 940410644), (40, 470205322), (80, 235102661), (1019, 18457520), (2038, 9228760), (4076, 4614380), (5095, 3691504), (8152, 2307190), (10190, 1845752), (16304, 1153595), (20380, 922876), (40760, 461438), (81520, 230719)]