19743080

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{1439}}^1$

素因数の和:1471

約数の個数: 64

約数和(自身を含む): 51840000

約数和(自身を除く): 32096920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 343, 392, 490, 686, 980, 1372, 1439, 1715, 1960, 2744, 2878, 3430, 5756, 6860, 7195, 10073, 11512, 13720, 14390, 20146, 28780, 40292, 50365, 57560, 70511, 80584, 100730, 141022, 201460, 282044, 352555, 402920, 493577, 564088, 705110, 987154, 1410220, 1974308, 2467885, 2820440, 3948616, 4935770, 9871540, 19743080]

約数ペア:

[(1, 19743080), (2, 9871540), (4, 4935770), (5, 3948616), (7, 2820440), (8, 2467885), (10, 1974308), (14, 1410220), (20, 987154), (28, 705110), (35, 564088), (40, 493577), (49, 402920), (56, 352555), (70, 282044), (98, 201460), (140, 141022), (196, 100730), (245, 80584), (280, 70511), (343, 57560), (392, 50365), (490, 40292), (686, 28780), (980, 20146), (1372, 14390), (1439, 13720), (1715, 11512), (1960, 10073), (2744, 7195), (2878, 6860), (3430, 5756)]