204170920

素因数分解:

$2^3\times 5^1\times {\mathrm{739}}^1\times {\mathrm{6907}}^1$

素因数の和:7657

約数の個数: 32

約数和(自身を含む): 460072800

約数和(自身を除く): 255901880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 739, 1478, 2956, 3695, 5912, 6907, 7390, 13814, 14780, 27628, 29560, 34535, 55256, 69070, 138140, 276280, 5104273, 10208546, 20417092, 25521365, 40834184, 51042730, 102085460, 204170920]

約数ペア:

[(1, 204170920), (2, 102085460), (4, 51042730), (5, 40834184), (8, 25521365), (10, 20417092), (20, 10208546), (40, 5104273), (739, 276280), (1478, 138140), (2956, 69070), (3695, 55256), (5912, 34535), (6907, 29560), (7390, 27628), (13814, 14780)]