2591551120

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{467}}^1\times {\mathrm{977}}^1$

素因数の和:1528

約数の個数: 80

約数和(自身を含む): 6129571968

約数和(自身を除く): 3538020848

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 467, 568, 710, 934, 977, 1136, 1420, 1868, 1954, 2335, 2840, 3736, 3908, 4670, 4885, 5680, 7472, 7816, 9340, 9770, 15632, 18680, 19540, 33157, 37360, 39080, 66314, 69367, 78160, 132628, 138734, 165785, 265256, 277468, 331570, 346835, 456259, 530512, 554936, 663140, 693670, 912518, 1109872, 1326280, 1387340, 1825036, 2281295, 2652560, 2774680, 3650072, 4562590, 5549360, 7300144, 9125180, 18250360, 32394389, 36500720, 64788778, 129577556, 161971945, 259155112, 323943890, 518310224, 647887780, 1295775560, 2591551120]

約数ペア:

[(1, 2591551120), (2, 1295775560), (4, 647887780), (5, 518310224), (8, 323943890), (10, 259155112), (16, 161971945), (20, 129577556), (40, 64788778), (71, 36500720), (80, 32394389), (142, 18250360), (284, 9125180), (355, 7300144), (467, 5549360), (568, 4562590), (710, 3650072), (934, 2774680), (977, 2652560), (1136, 2281295), (1420, 1825036), (1868, 1387340), (1954, 1326280), (2335, 1109872), (2840, 912518), (3736, 693670), (3908, 663140), (4670, 554936), (4885, 530512), (5680, 456259), (7472, 346835), (7816, 331570), (9340, 277468), (9770, 265256), (15632, 165785), (18680, 138734), (19540, 132628), (33157, 78160), (37360, 69367), (39080, 66314)]