89969320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{321319}}^1$

素因数の和:321337

約数の個数: 32

約数和(自身を含む): 231350400

約数和(自身を除く): 141381080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 321319, 642638, 1285276, 1606595, 2249233, 2570552, 3213190, 4498466, 6426380, 8996932, 11246165, 12852760, 17993864, 22492330, 44984660, 89969320]

約数ペア:

[(1, 89969320), (2, 44984660), (4, 22492330), (5, 17993864), (7, 12852760), (8, 11246165), (10, 8996932), (14, 6426380), (20, 4498466), (28, 3213190), (35, 2570552), (40, 2249233), (56, 1606595), (70, 1285276), (140, 642638), (280, 321319)]