77703920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1$

素因数の和:215

約数の個数: 160

約数和(自身を含む): 222604800

約数和(自身を除く): 144900880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 56, 67, 70, 76, 80, 95, 109, 112, 133, 134, 140, 152, 190, 218, 266, 268, 280, 304, 335, 380, 436, 469, 532, 536, 545, 560, 665, 670, 760, 763, 872, 938, 1064, 1072, 1090, 1273, 1330, 1340, 1520, 1526, 1744, 1876, 2071, 2128, 2180, 2345, 2546, 2660, 2680, 3052, 3752, 3815, 4142, 4360, 4690, 5092, 5320, 5360, 6104, 6365, 7303, 7504, 7630, 8284, 8720, 8911, 9380, 10184, 10355, 10640, 12208, 12730, 14497, 14606, 15260, 16568, 17822, 18760, 20368, 20710, 25460, 28994, 29212, 30520, 33136, 35644, 36515, 37520, 41420, 44555, 50920, 51121, 57988, 58424, 61040, 71288, 72485, 73030, 82840, 89110, 101840, 102242, 115976, 116848, 138757, 142576, 144970, 146060, 165680, 178220, 204484, 231952, 255605, 277514, 289940, 292120, 356440, 408968, 511210, 555028, 579880, 584240, 693785, 712880, 817936, 971299, 1022420, 1110056, 1159760, 1387570, 1942598, 2044840, 2220112, 2775140, 3885196, 4089680, 4856495, 5550280, 7770392, 9712990, 11100560, 15540784, 19425980, 38851960, 77703920]

約数ペア:

[(1, 77703920), (2, 38851960), (4, 19425980), (5, 15540784), (7, 11100560), (8, 9712990), (10, 7770392), (14, 5550280), (16, 4856495), (19, 4089680), (20, 3885196), (28, 2775140), (35, 2220112), (38, 2044840), (40, 1942598), (56, 1387570), (67, 1159760), (70, 1110056), (76, 1022420), (80, 971299), (95, 817936), (109, 712880), (112, 693785), (133, 584240), (134, 579880), (140, 555028), (152, 511210), (190, 408968), (218, 356440), (266, 292120), (268, 289940), (280, 277514), (304, 255605), (335, 231952), (380, 204484), (436, 178220), (469, 165680), (532, 146060), (536, 144970), (545, 142576), (560, 138757), (665, 116848), (670, 115976), (760, 102242), (763, 101840), (872, 89110), (938, 82840), (1064, 73030), (1072, 72485), (1090, 71288), (1273, 61040), (1330, 58424), (1340, 57988), (1520, 51121), (1526, 50920), (1744, 44555), (1876, 41420), (2071, 37520), (2128, 36515), (2180, 35644), (2345, 33136), (2546, 30520), (2660, 29212), (2680, 28994), (3052, 25460), (3752, 20710), (3815, 20368), (4142, 18760), (4360, 17822), (4690, 16568), (5092, 15260), (5320, 14606), (5360, 14497), (6104, 12730), (6365, 12208), (7303, 10640), (7504, 10355), (7630, 10184), (8284, 9380), (8720, 8911)]