76489840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{997}}^1$

素因数の和:1154

約数の個数: 80

約数和(自身を含む): 204933312

約数和(自身を除く): 128443472

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 137, 140, 274, 280, 548, 560, 685, 959, 997, 1096, 1370, 1918, 1994, 2192, 2740, 3836, 3988, 4795, 4985, 5480, 6979, 7672, 7976, 9590, 9970, 10960, 13958, 15344, 15952, 19180, 19940, 27916, 34895, 38360, 39880, 55832, 69790, 76720, 79760, 111664, 136589, 139580, 273178, 279160, 546356, 558320, 682945, 956123, 1092712, 1365890, 1912246, 2185424, 2731780, 3824492, 4780615, 5463560, 7648984, 9561230, 10927120, 15297968, 19122460, 38244920, 76489840]

約数ペア:

[(1, 76489840), (2, 38244920), (4, 19122460), (5, 15297968), (7, 10927120), (8, 9561230), (10, 7648984), (14, 5463560), (16, 4780615), (20, 3824492), (28, 2731780), (35, 2185424), (40, 1912246), (56, 1365890), (70, 1092712), (80, 956123), (112, 682945), (137, 558320), (140, 546356), (274, 279160), (280, 273178), (548, 139580), (560, 136589), (685, 111664), (959, 79760), (997, 76720), (1096, 69790), (1370, 55832), (1918, 39880), (1994, 38360), (2192, 34895), (2740, 27916), (3836, 19940), (3988, 19180), (4795, 15952), (4985, 15344), (5480, 13958), (6979, 10960), (7672, 9970), (7976, 9590)]