91287320

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{55663}}^1$

素因数の和:55715

約数の個数: 32

約数和(自身を含む): 210409920

約数和(自身を除く): 119122600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 55663, 111326, 222652, 278315, 445304, 556630, 1113260, 2226520, 2282183, 4564366, 9128732, 11410915, 18257464, 22821830, 45643660, 91287320]

約数ペア:

[(1, 91287320), (2, 45643660), (4, 22821830), (5, 18257464), (8, 11410915), (10, 9128732), (20, 4564366), (40, 2282183), (41, 2226520), (82, 1113260), (164, 556630), (205, 445304), (328, 278315), (410, 222652), (820, 111326), (1640, 55663)]