2650240

素因数分解:

$2^7\times 5^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1$

素因数の和:161

約数の個数: 64

約数和(自身を含む): 6554520

約数和(自身を除く): 3904280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 101, 128, 160, 164, 202, 205, 320, 328, 404, 410, 505, 640, 656, 808, 820, 1010, 1312, 1616, 1640, 2020, 2624, 3232, 3280, 4040, 4141, 5248, 6464, 6560, 8080, 8282, 12928, 13120, 16160, 16564, 20705, 26240, 32320, 33128, 41410, 64640, 66256, 82820, 132512, 165640, 265024, 331280, 530048, 662560, 1325120, 2650240]

約数ペア:

[(1, 2650240), (2, 1325120), (4, 662560), (5, 530048), (8, 331280), (10, 265024), (16, 165640), (20, 132512), (32, 82820), (40, 66256), (41, 64640), (64, 41410), (80, 33128), (82, 32320), (101, 26240), (128, 20705), (160, 16564), (164, 16160), (202, 13120), (205, 12928), (320, 8282), (328, 8080), (404, 6560), (410, 6464), (505, 5248), (640, 4141), (656, 4040), (808, 3280), (820, 3232), (1010, 2624), (1312, 2020), (1616, 1640)]