208906775

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{2309}}^1$

素因数の和:2384

約数の個数: 48

約数和(自身を含む): 329978880

約数和(自身を除く): 121072105

約数列:

[1, 5, 7, 11, 25, 35, 47, 55, 77, 175, 235, 275, 329, 385, 517, 1175, 1645, 1925, 2309, 2585, 3619, 8225, 11545, 12925, 16163, 18095, 25399, 57725, 80815, 90475, 108523, 126995, 177793, 404075, 542615, 634975, 759661, 888965, 1193753, 2713075, 3798305, 4444825, 5968765, 8356271, 18991525, 29843825, 41781355, 208906775]

約数ペア:

[(1, 208906775), (5, 41781355), (7, 29843825), (11, 18991525), (25, 8356271), (35, 5968765), (47, 4444825), (55, 3798305), (77, 2713075), (175, 1193753), (235, 888965), (275, 759661), (329, 634975), (385, 542615), (517, 404075), (1175, 177793), (1645, 126995), (1925, 108523), (2309, 90475), (2585, 80815), (3619, 57725), (8225, 25399), (11545, 18095), (12925, 16163)]