28368760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1427}}^1$

素因数の和:1516

約数の個数: 64

約数和(自身を含む): 74027520

約数和(自身を除く): 45658760

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, 1427, 1988, 2485, 2840, 2854, 3976, 4970, 5708, 7135, 9940, 9989, 11416, 14270, 19880, 19978, 28540, 39956, 49945, 57080, 79912, 99890, 101317, 199780, 202634, 399560, 405268, 506585, 709219, 810536, 1013170, 1418438, 2026340, 2836876, 3546095, 4052680, 5673752, 7092190, 14184380, 28368760]

約数ペア:

[(1, 28368760), (2, 14184380), (4, 7092190), (5, 5673752), (7, 4052680), (8, 3546095), (10, 2836876), (14, 2026340), (20, 1418438), (28, 1013170), (35, 810536), (40, 709219), (56, 506585), (70, 405268), (71, 399560), (140, 202634), (142, 199780), (280, 101317), (284, 99890), (355, 79912), (497, 57080), (568, 49945), (710, 39956), (994, 28540), (1420, 19978), (1427, 19880), (1988, 14270), (2485, 11416), (2840, 9989), (2854, 9940), (3976, 7135), (4970, 5708)]