19007645720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{956119}}^1$

素因数の和:956208

約数の個数: 64

約数和(自身を含む): 49565260800

約数和(自身を除く): 30557615080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 140, 142, 280, 284, 355, 497, 568, 710, 994, 1420, 1988, 2485, 2840, 3976, 4970, 9940, 19880, 956119, 1912238, 3824476, 4780595, 6692833, 7648952, 9561190, 13385666, 19122380, 26771332, 33464165, 38244760, 53542664, 66928330, 67884449, 133856660, 135768898, 267713320, 271537796, 339422245, 475191143, 543075592, 678844490, 950382286, 1357688980, 1900764572, 2375955715, 2715377960, 3801529144, 4751911430, 9503822860, 19007645720]

約数ペア:

[(1, 19007645720), (2, 9503822860), (4, 4751911430), (5, 3801529144), (7, 2715377960), (8, 2375955715), (10, 1900764572), (14, 1357688980), (20, 950382286), (28, 678844490), (35, 543075592), (40, 475191143), (56, 339422245), (70, 271537796), (71, 267713320), (140, 135768898), (142, 133856660), (280, 67884449), (284, 66928330), (355, 53542664), (497, 38244760), (568, 33464165), (710, 26771332), (994, 19122380), (1420, 13385666), (1988, 9561190), (2485, 7648952), (2840, 6692833), (3976, 4780595), (4970, 3824476), (9940, 1912238), (19880, 956119)]