80831840

素因数分解:

$2^5\times 5^1\times {\mathrm{557}}^1\times {\mathrm{907}}^1$

素因数の和:1479

約数の個数: 48

約数和(自身を含む): 191518992

約数和(自身を除く): 110687152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 557, 907, 1114, 1814, 2228, 2785, 3628, 4456, 4535, 5570, 7256, 8912, 9070, 11140, 14512, 17824, 18140, 22280, 29024, 36280, 44560, 72560, 89120, 145120, 505199, 1010398, 2020796, 2525995, 4041592, 5051990, 8083184, 10103980, 16166368, 20207960, 40415920, 80831840]

約数ペア:

[(1, 80831840), (2, 40415920), (4, 20207960), (5, 16166368), (8, 10103980), (10, 8083184), (16, 5051990), (20, 4041592), (32, 2525995), (40, 2020796), (80, 1010398), (160, 505199), (557, 145120), (907, 89120), (1114, 72560), (1814, 44560), (2228, 36280), (2785, 29024), (3628, 22280), (4456, 18140), (4535, 17824), (5570, 14512), (7256, 11140), (8912, 9070)]