28068040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{701}}^1$

素因数の和:743

約数の個数: 128

約数和(自身を含む): 84913920

約数和(自身を除く): 56845880

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 20, 22, 26, 28, 35, 40, 44, 52, 55, 56, 65, 70, 77, 88, 91, 104, 110, 130, 140, 143, 154, 182, 220, 260, 280, 286, 308, 364, 385, 440, 455, 520, 572, 616, 701, 715, 728, 770, 910, 1001, 1144, 1402, 1430, 1540, 1820, 2002, 2804, 2860, 3080, 3505, 3640, 4004, 4907, 5005, 5608, 5720, 7010, 7711, 8008, 9113, 9814, 10010, 14020, 15422, 18226, 19628, 20020, 24535, 28040, 30844, 36452, 38555, 39256, 40040, 45565, 49070, 53977, 61688, 63791, 72904, 77110, 91130, 98140, 100243, 107954, 127582, 154220, 182260, 196280, 200486, 215908, 255164, 269885, 308440, 318955, 364520, 400972, 431816, 501215, 510328, 539770, 637910, 701701, 801944, 1002430, 1079540, 1275820, 1403402, 2004860, 2159080, 2551640, 2806804, 3508505, 4009720, 5613608, 7017010, 14034020, 28068040]

約数ペア:

[(1, 28068040), (2, 14034020), (4, 7017010), (5, 5613608), (7, 4009720), (8, 3508505), (10, 2806804), (11, 2551640), (13, 2159080), (14, 2004860), (20, 1403402), (22, 1275820), (26, 1079540), (28, 1002430), (35, 801944), (40, 701701), (44, 637910), (52, 539770), (55, 510328), (56, 501215), (65, 431816), (70, 400972), (77, 364520), (88, 318955), (91, 308440), (104, 269885), (110, 255164), (130, 215908), (140, 200486), (143, 196280), (154, 182260), (182, 154220), (220, 127582), (260, 107954), (280, 100243), (286, 98140), (308, 91130), (364, 77110), (385, 72904), (440, 63791), (455, 61688), (520, 53977), (572, 49070), (616, 45565), (701, 40040), (715, 39256), (728, 38555), (770, 36452), (910, 30844), (1001, 28040), (1144, 24535), (1402, 20020), (1430, 19628), (1540, 18226), (1820, 15422), (2002, 14020), (2804, 10010), (2860, 9814), (3080, 9113), (3505, 8008), (3640, 7711), (4004, 7010), (4907, 5720), (5005, 5608)]