18576640

素因数分解:

$2^8\times 5^1\times {\mathrm{23}}^1\times {\mathrm{631}}^1$

素因数の和:675

約数の個数: 72

約数和(自身を含む): 46505088

約数和(自身を除く): 27928448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 128, 160, 184, 230, 256, 320, 368, 460, 631, 640, 736, 920, 1262, 1280, 1472, 1840, 2524, 2944, 3155, 3680, 5048, 5888, 6310, 7360, 10096, 12620, 14513, 14720, 20192, 25240, 29026, 29440, 40384, 50480, 58052, 72565, 80768, 100960, 116104, 145130, 161536, 201920, 232208, 290260, 403840, 464416, 580520, 807680, 928832, 1161040, 1857664, 2322080, 3715328, 4644160, 9288320, 18576640]

約数ペア:

[(1, 18576640), (2, 9288320), (4, 4644160), (5, 3715328), (8, 2322080), (10, 1857664), (16, 1161040), (20, 928832), (23, 807680), (32, 580520), (40, 464416), (46, 403840), (64, 290260), (80, 232208), (92, 201920), (115, 161536), (128, 145130), (160, 116104), (184, 100960), (230, 80768), (256, 72565), (320, 58052), (368, 50480), (460, 40384), (631, 29440), (640, 29026), (736, 25240), (920, 20192), (1262, 14720), (1280, 14513), (1472, 12620), (1840, 10096), (2524, 7360), (2944, 6310), (3155, 5888), (3680, 5048)]