28500520

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{6659}}^1$

素因数の和:6777

約数の個数: 32

約数和(自身を含む): 64735200

約数和(自身を除く): 36234680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 428, 535, 856, 1070, 2140, 4280, 6659, 13318, 26636, 33295, 53272, 66590, 133180, 266360, 712513, 1425026, 2850052, 3562565, 5700104, 7125130, 14250260, 28500520]

約数ペア:

[(1, 28500520), (2, 14250260), (4, 7125130), (5, 5700104), (8, 3562565), (10, 2850052), (20, 1425026), (40, 712513), (107, 266360), (214, 133180), (428, 66590), (535, 53272), (856, 33295), (1070, 26636), (2140, 13318), (4280, 6659)]