800628320

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^2\times {\mathrm{41}}^1\times {\mathrm{127}}^1$

素因数の和:245

約数の個数: 144

約数和(自身を含む): 2017903104

約数和(自身を除く): 1217274784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 41, 62, 80, 82, 124, 127, 155, 160, 164, 205, 248, 254, 310, 328, 410, 496, 508, 620, 635, 656, 820, 961, 992, 1016, 1240, 1270, 1271, 1312, 1640, 1922, 2032, 2480, 2540, 2542, 3280, 3844, 3937, 4064, 4805, 4960, 5080, 5084, 5207, 6355, 6560, 7688, 7874, 9610, 10160, 10168, 10414, 12710, 15376, 15748, 19220, 19685, 20320, 20336, 20828, 25420, 26035, 30752, 31496, 38440, 39370, 39401, 40672, 41656, 50840, 52070, 62992, 76880, 78740, 78802, 83312, 101680, 104140, 122047, 125984, 153760, 157480, 157604, 161417, 166624, 197005, 203360, 208280, 244094, 314960, 315208, 322834, 394010, 416560, 488188, 610235, 629920, 630416, 645668, 788020, 807085, 833120, 976376, 1220470, 1260832, 1291336, 1576040, 1614170, 1952752, 2440940, 2582672, 3152080, 3228340, 3905504, 4881880, 5003927, 5165344, 6304160, 6456680, 9763760, 10007854, 12913360, 19527520, 20015708, 25019635, 25826720, 40031416, 50039270, 80062832, 100078540, 160125664, 200157080, 400314160, 800628320]

約数ペア:

[(1, 800628320), (2, 400314160), (4, 200157080), (5, 160125664), (8, 100078540), (10, 80062832), (16, 50039270), (20, 40031416), (31, 25826720), (32, 25019635), (40, 20015708), (41, 19527520), (62, 12913360), (80, 10007854), (82, 9763760), (124, 6456680), (127, 6304160), (155, 5165344), (160, 5003927), (164, 4881880), (205, 3905504), (248, 3228340), (254, 3152080), (310, 2582672), (328, 2440940), (410, 1952752), (496, 1614170), (508, 1576040), (620, 1291336), (635, 1260832), (656, 1220470), (820, 976376), (961, 833120), (992, 807085), (1016, 788020), (1240, 645668), (1270, 630416), (1271, 629920), (1312, 610235), (1640, 488188), (1922, 416560), (2032, 394010), (2480, 322834), (2540, 315208), (2542, 314960), (3280, 244094), (3844, 208280), (3937, 203360), (4064, 197005), (4805, 166624), (4960, 161417), (5080, 157604), (5084, 157480), (5207, 153760), (6355, 125984), (6560, 122047), (7688, 104140), (7874, 101680), (9610, 83312), (10160, 78802), (10168, 78740), (10414, 76880), (12710, 62992), (15376, 52070), (15748, 50840), (19220, 41656), (19685, 40672), (20320, 39401), (20336, 39370), (20828, 38440), (25420, 31496), (26035, 30752)]