90515920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{102859}}^1$

素因数の和:102883

約数の個数: 40

約数和(自身を含む): 229583520

約数和(自身を除く): 139067600

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 102859, 205718, 411436, 514295, 822872, 1028590, 1131449, 1645744, 2057180, 2262898, 4114360, 4525796, 5657245, 8228720, 9051592, 11314490, 18103184, 22628980, 45257960, 90515920]

約数ペア:

[(1, 90515920), (2, 45257960), (4, 22628980), (5, 18103184), (8, 11314490), (10, 9051592), (11, 8228720), (16, 5657245), (20, 4525796), (22, 4114360), (40, 2262898), (44, 2057180), (55, 1645744), (80, 1131449), (88, 1028590), (110, 822872), (176, 514295), (220, 411436), (440, 205718), (880, 102859)]