28283560

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{433}}^1$

素因数の和:538

約数の個数: 64

約数和(自身を含む): 67495680

約数和(自身を除く): 39212120

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 71, 92, 115, 142, 184, 230, 284, 355, 433, 460, 568, 710, 866, 920, 1420, 1633, 1732, 2165, 2840, 3266, 3464, 4330, 6532, 8165, 8660, 9959, 13064, 16330, 17320, 19918, 30743, 32660, 39836, 49795, 61486, 65320, 79672, 99590, 122972, 153715, 199180, 245944, 307430, 398360, 614860, 707089, 1229720, 1414178, 2828356, 3535445, 5656712, 7070890, 14141780, 28283560]

約数ペア:

[(1, 28283560), (2, 14141780), (4, 7070890), (5, 5656712), (8, 3535445), (10, 2828356), (20, 1414178), (23, 1229720), (40, 707089), (46, 614860), (71, 398360), (92, 307430), (115, 245944), (142, 199180), (184, 153715), (230, 122972), (284, 99590), (355, 79672), (433, 65320), (460, 61486), (568, 49795), (710, 39836), (866, 32660), (920, 30743), (1420, 19918), (1633, 17320), (1732, 16330), (2165, 13064), (2840, 9959), (3266, 8660), (3464, 8165), (4330, 6532)]