18387680

素因数分解:

$2^5\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2803}}^1$

素因数の和:2859

約数の個数: 48

約数和(自身を含む): 44516304

約数和(自身を除く): 26128624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 80, 82, 160, 164, 205, 328, 410, 656, 820, 1312, 1640, 2803, 3280, 5606, 6560, 11212, 14015, 22424, 28030, 44848, 56060, 89696, 112120, 114923, 224240, 229846, 448480, 459692, 574615, 919384, 1149230, 1838768, 2298460, 3677536, 4596920, 9193840, 18387680]

約数ペア:

[(1, 18387680), (2, 9193840), (4, 4596920), (5, 3677536), (8, 2298460), (10, 1838768), (16, 1149230), (20, 919384), (32, 574615), (40, 459692), (41, 448480), (80, 229846), (82, 224240), (160, 114923), (164, 112120), (205, 89696), (328, 56060), (410, 44848), (656, 28030), (820, 22424), (1312, 14015), (1640, 11212), (2803, 6560), (3280, 5606)]