1245280

素因数分解:

$2^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1$

素因数の和:239

約数の個数: 48

約数和(自身を含む): 3027024

約数和(自身を除く): 1781744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 80, 86, 160, 172, 181, 215, 344, 362, 430, 688, 724, 860, 905, 1376, 1448, 1720, 1810, 2896, 3440, 3620, 5792, 6880, 7240, 7783, 14480, 15566, 28960, 31132, 38915, 62264, 77830, 124528, 155660, 249056, 311320, 622640, 1245280]

約数ペア:

[(1, 1245280), (2, 622640), (4, 311320), (5, 249056), (8, 155660), (10, 124528), (16, 77830), (20, 62264), (32, 38915), (40, 31132), (43, 28960), (80, 15566), (86, 14480), (160, 7783), (172, 7240), (181, 6880), (215, 5792), (344, 3620), (362, 3440), (430, 2896), (688, 1810), (724, 1720), (860, 1448), (905, 1376)]