1999579840

素因数分解:

$2^6\times 5^1\times {\mathrm{41}}^1\times {\mathrm{152407}}^1$

素因数の和:152465

約数の個数: 56

約数和(自身を含む): 4877665632

約数和(自身を除く): 2878085792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 160, 164, 205, 320, 328, 410, 656, 820, 1312, 1640, 2624, 3280, 6560, 13120, 152407, 304814, 609628, 762035, 1219256, 1524070, 2438512, 3048140, 4877024, 6096280, 6248687, 9754048, 12192560, 12497374, 24385120, 24994748, 31243435, 48770240, 49989496, 62486870, 99978992, 124973740, 199957984, 249947480, 399915968, 499894960, 999789920, 1999579840]

約数ペア:

[(1, 1999579840), (2, 999789920), (4, 499894960), (5, 399915968), (8, 249947480), (10, 199957984), (16, 124973740), (20, 99978992), (32, 62486870), (40, 49989496), (41, 48770240), (64, 31243435), (80, 24994748), (82, 24385120), (160, 12497374), (164, 12192560), (205, 9754048), (320, 6248687), (328, 6096280), (410, 4877024), (656, 3048140), (820, 2438512), (1312, 1524070), (1640, 1219256), (2624, 762035), (3280, 609628), (6560, 304814), (13120, 152407)]