1553398840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^2\times {\mathrm{251}}^1$

素因数の和:354

約数の個数: 192

約数和(自身を含む): 4324078080

約数和(自身を除く): 2770679240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 31, 35, 40, 46, 56, 62, 70, 92, 115, 124, 140, 155, 161, 184, 217, 230, 248, 251, 280, 310, 322, 434, 460, 502, 620, 644, 713, 805, 868, 920, 961, 1004, 1085, 1240, 1255, 1288, 1426, 1610, 1736, 1757, 1922, 2008, 2170, 2510, 2852, 3220, 3514, 3565, 3844, 4340, 4805, 4991, 5020, 5704, 5773, 6440, 6727, 7028, 7130, 7688, 7781, 8680, 8785, 9610, 9982, 10040, 11546, 13454, 14056, 14260, 15562, 17570, 19220, 19964, 22103, 23092, 24955, 26908, 28520, 28865, 31124, 33635, 35140, 38440, 38905, 39928, 40411, 44206, 46184, 49910, 53816, 54467, 57730, 62248, 67270, 70280, 77810, 80822, 88412, 99820, 108934, 110515, 115460, 134540, 154721, 155620, 161644, 176824, 178963, 199640, 202055, 217868, 221030, 230920, 241211, 269080, 272335, 309442, 311240, 323288, 357926, 404110, 435736, 442060, 482422, 544670, 618884, 715852, 773605, 808220, 884120, 894815, 964844, 1089340, 1206055, 1237768, 1252741, 1431704, 1547210, 1616440, 1688477, 1789630, 1929688, 2178680, 2412110, 2505482, 3094420, 3376954, 3579260, 4824220, 5010964, 5547853, 6188840, 6263705, 6753908, 7158520, 8442385, 9648440, 10021928, 11095706, 12527410, 13507816, 16884770, 22191412, 25054820, 27739265, 33769540, 38834971, 44382824, 50109640, 55478530, 67539080, 77669942, 110957060, 155339884, 194174855, 221914120, 310679768, 388349710, 776699420, 1553398840]

約数ペア:

[(1, 1553398840), (2, 776699420), (4, 388349710), (5, 310679768), (7, 221914120), (8, 194174855), (10, 155339884), (14, 110957060), (20, 77669942), (23, 67539080), (28, 55478530), (31, 50109640), (35, 44382824), (40, 38834971), (46, 33769540), (56, 27739265), (62, 25054820), (70, 22191412), (92, 16884770), (115, 13507816), (124, 12527410), (140, 11095706), (155, 10021928), (161, 9648440), (184, 8442385), (217, 7158520), (230, 6753908), (248, 6263705), (251, 6188840), (280, 5547853), (310, 5010964), (322, 4824220), (434, 3579260), (460, 3376954), (502, 3094420), (620, 2505482), (644, 2412110), (713, 2178680), (805, 1929688), (868, 1789630), (920, 1688477), (961, 1616440), (1004, 1547210), (1085, 1431704), (1240, 1252741), (1255, 1237768), (1288, 1206055), (1426, 1089340), (1610, 964844), (1736, 894815), (1757, 884120), (1922, 808220), (2008, 773605), (2170, 715852), (2510, 618884), (2852, 544670), (3220, 482422), (3514, 442060), (3565, 435736), (3844, 404110), (4340, 357926), (4805, 323288), (4991, 311240), (5020, 309442), (5704, 272335), (5773, 269080), (6440, 241211), (6727, 230920), (7028, 221030), (7130, 217868), (7688, 202055), (7781, 199640), (8680, 178963), (8785, 176824), (9610, 161644), (9982, 155620), (10040, 154721), (11546, 134540), (13454, 115460), (14056, 110515), (14260, 108934), (15562, 99820), (17570, 88412), (19220, 80822), (19964, 77810), (22103, 70280), (23092, 67270), (24955, 62248), (26908, 57730), (28520, 54467), (28865, 53816), (31124, 49910), (33635, 46184), (35140, 44206), (38440, 40411), (38905, 39928)]