19842560

素因数分解:

$2^9\times 5^1\times {\mathrm{23}}^1\times {\mathrm{337}}^1$

素因数の和:383

約数の個数: 80

約数和(自身を含む): 49791456

約数和(自身を除く): 29948896

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, 337, 368, 460, 512, 640, 674, 736, 920, 1280, 1348, 1472, 1685, 1840, 2560, 2696, 2944, 3370, 3680, 5392, 5888, 6740, 7360, 7751, 10784, 11776, 13480, 14720, 15502, 21568, 26960, 29440, 31004, 38755, 43136, 53920, 58880, 62008, 77510, 86272, 107840, 124016, 155020, 172544, 215680, 248032, 310040, 431360, 496064, 620080, 862720, 992128, 1240160, 1984256, 2480320, 3968512, 4960640, 9921280, 19842560]

約数ペア:

[(1, 19842560), (2, 9921280), (4, 4960640), (5, 3968512), (8, 2480320), (10, 1984256), (16, 1240160), (20, 992128), (23, 862720), (32, 620080), (40, 496064), (46, 431360), (64, 310040), (80, 248032), (92, 215680), (115, 172544), (128, 155020), (160, 124016), (184, 107840), (230, 86272), (256, 77510), (320, 62008), (337, 58880), (368, 53920), (460, 43136), (512, 38755), (640, 31004), (674, 29440), (736, 26960), (920, 21568), (1280, 15502), (1348, 14720), (1472, 13480), (1685, 11776), (1840, 10784), (2560, 7751), (2696, 7360), (2944, 6740), (3370, 5888), (3680, 5392)]