1649498840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{47}}^1\times {\mathrm{83}}^1$

素因数の和:214

約数の個数: 192

約数和(自身を含む): 4324078080

約数和(自身を除く): 2674579240

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 47, 55, 62, 83, 88, 94, 110, 124, 155, 166, 188, 220, 235, 248, 310, 332, 341, 376, 415, 440, 470, 517, 620, 664, 682, 830, 913, 940, 961, 1034, 1240, 1364, 1457, 1660, 1705, 1826, 1880, 1922, 2068, 2573, 2585, 2728, 2914, 3320, 3410, 3652, 3844, 3901, 4136, 4565, 4805, 5146, 5170, 5828, 6820, 7285, 7304, 7688, 7802, 9130, 9610, 10292, 10340, 10571, 11656, 12865, 13640, 14570, 15604, 16027, 18260, 19220, 19505, 20584, 20680, 21142, 25730, 28303, 29140, 31208, 32054, 36520, 38440, 39010, 42284, 42911, 45167, 51460, 52855, 56606, 58280, 64108, 78020, 79763, 80135, 84568, 85822, 90334, 102920, 105710, 113212, 120931, 128216, 141515, 156040, 159526, 160270, 171644, 180668, 211420, 214555, 225835, 226424, 241862, 283030, 319052, 320540, 343288, 361336, 398815, 422840, 429110, 451670, 483724, 496837, 566060, 604655, 638104, 641080, 797630, 858220, 877393, 903340, 967448, 993674, 1132120, 1209310, 1330241, 1595260, 1716440, 1754786, 1806680, 1987348, 2418620, 2484185, 2660482, 3190520, 3509572, 3748861, 3974696, 4386965, 4837240, 4968370, 5320964, 6651205, 7019144, 7497722, 8773930, 9936740, 10641928, 13302410, 14995444, 17547860, 18744305, 19873480, 26604820, 29990888, 35095720, 37488610, 41237471, 53209640, 74977220, 82474942, 149954440, 164949884, 206187355, 329899768, 412374710, 824749420, 1649498840]

約数ペア:

[(1, 1649498840), (2, 824749420), (4, 412374710), (5, 329899768), (8, 206187355), (10, 164949884), (11, 149954440), (20, 82474942), (22, 74977220), (31, 53209640), (40, 41237471), (44, 37488610), (47, 35095720), (55, 29990888), (62, 26604820), (83, 19873480), (88, 18744305), (94, 17547860), (110, 14995444), (124, 13302410), (155, 10641928), (166, 9936740), (188, 8773930), (220, 7497722), (235, 7019144), (248, 6651205), (310, 5320964), (332, 4968370), (341, 4837240), (376, 4386965), (415, 3974696), (440, 3748861), (470, 3509572), (517, 3190520), (620, 2660482), (664, 2484185), (682, 2418620), (830, 1987348), (913, 1806680), (940, 1754786), (961, 1716440), (1034, 1595260), (1240, 1330241), (1364, 1209310), (1457, 1132120), (1660, 993674), (1705, 967448), (1826, 903340), (1880, 877393), (1922, 858220), (2068, 797630), (2573, 641080), (2585, 638104), (2728, 604655), (2914, 566060), (3320, 496837), (3410, 483724), (3652, 451670), (3844, 429110), (3901, 422840), (4136, 398815), (4565, 361336), (4805, 343288), (5146, 320540), (5170, 319052), (5828, 283030), (6820, 241862), (7285, 226424), (7304, 225835), (7688, 214555), (7802, 211420), (9130, 180668), (9610, 171644), (10292, 160270), (10340, 159526), (10571, 156040), (11656, 141515), (12865, 128216), (13640, 120931), (14570, 113212), (15604, 105710), (16027, 102920), (18260, 90334), (19220, 85822), (19505, 84568), (20584, 80135), (20680, 79763), (21142, 78020), (25730, 64108), (28303, 58280), (29140, 56606), (31208, 52855), (32054, 51460), (36520, 45167), (38440, 42911), (39010, 42284)]