745678472

素因数分解:

$2^3\times 7^2\times {\mathrm{11}}^2\times {\mathrm{79}}^1\times {\mathrm{199}}^1$

素因数の和:320

約数の個数: 144

約数和(自身を含む): 1819440000

約数和(自身を除く): 1073761528

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 49, 56, 77, 79, 88, 98, 121, 154, 158, 196, 199, 242, 308, 316, 392, 398, 484, 539, 553, 616, 632, 796, 847, 869, 968, 1078, 1106, 1393, 1592, 1694, 1738, 2156, 2189, 2212, 2786, 3388, 3476, 3871, 4312, 4378, 4424, 5572, 5929, 6083, 6776, 6952, 7742, 8756, 9559, 9751, 11144, 11858, 12166, 15323, 15484, 15721, 17512, 19118, 19502, 23716, 24079, 24332, 30646, 30968, 31442, 38236, 39004, 42581, 47432, 48158, 48664, 61292, 62884, 66913, 76472, 78008, 85162, 96316, 107261, 110047, 122584, 125768, 133826, 168553, 170324, 172931, 192632, 214522, 220094, 267652, 337106, 340648, 345862, 429044, 440188, 468391, 535304, 674212, 691724, 770329, 858088, 880376, 936782, 1179871, 1210517, 1348424, 1383448, 1540658, 1873564, 1902241, 2359742, 2421034, 3081316, 3747128, 3804482, 4719484, 4842068, 6162632, 7608964, 8473619, 9438968, 9684136, 13315687, 15217928, 16947238, 26631374, 33894476, 53262748, 67788952, 93209809, 106525496, 186419618, 372839236, 745678472]

約数ペア:

[(1, 745678472), (2, 372839236), (4, 186419618), (7, 106525496), (8, 93209809), (11, 67788952), (14, 53262748), (22, 33894476), (28, 26631374), (44, 16947238), (49, 15217928), (56, 13315687), (77, 9684136), (79, 9438968), (88, 8473619), (98, 7608964), (121, 6162632), (154, 4842068), (158, 4719484), (196, 3804482), (199, 3747128), (242, 3081316), (308, 2421034), (316, 2359742), (392, 1902241), (398, 1873564), (484, 1540658), (539, 1383448), (553, 1348424), (616, 1210517), (632, 1179871), (796, 936782), (847, 880376), (869, 858088), (968, 770329), (1078, 691724), (1106, 674212), (1393, 535304), (1592, 468391), (1694, 440188), (1738, 429044), (2156, 345862), (2189, 340648), (2212, 337106), (2786, 267652), (3388, 220094), (3476, 214522), (3871, 192632), (4312, 172931), (4378, 170324), (4424, 168553), (5572, 133826), (5929, 125768), (6083, 122584), (6776, 110047), (6952, 107261), (7742, 96316), (8756, 85162), (9559, 78008), (9751, 76472), (11144, 66913), (11858, 62884), (12166, 61292), (15323, 48664), (15484, 48158), (15721, 47432), (17512, 42581), (19118, 39004), (19502, 38236), (23716, 31442), (24079, 30968), (24332, 30646)]