728445440

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{137}}^1$

素因数の和:258

約数の個数: 160

約数和(自身を含む): 1843167744

約数和(自身を除く): 1114722304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 67, 80, 124, 128, 134, 137, 155, 160, 248, 256, 268, 274, 310, 320, 335, 496, 512, 536, 548, 620, 640, 670, 685, 992, 1072, 1096, 1240, 1280, 1340, 1370, 1984, 2077, 2144, 2192, 2480, 2560, 2680, 2740, 3968, 4154, 4247, 4288, 4384, 4960, 5360, 5480, 7936, 8308, 8494, 8576, 8768, 9179, 9920, 10385, 10720, 10960, 15872, 16616, 16988, 17152, 17536, 18358, 19840, 20770, 21235, 21440, 21920, 33232, 33976, 34304, 35072, 36716, 39680, 41540, 42470, 42880, 43840, 45895, 66464, 67952, 70144, 73432, 79360, 83080, 84940, 85760, 87680, 91790, 132928, 135904, 146864, 166160, 169880, 171520, 175360, 183580, 265856, 271808, 284549, 293728, 332320, 339760, 350720, 367160, 531712, 543616, 569098, 587456, 664640, 679520, 734320, 1063424, 1087232, 1138196, 1174912, 1329280, 1359040, 1422745, 1468640, 2174464, 2276392, 2349824, 2658560, 2718080, 2845490, 2937280, 4552784, 4699648, 5317120, 5436160, 5690980, 5874560, 9105568, 10872320, 11381960, 11749120, 18211136, 22763920, 23498240, 36422272, 45527840, 72844544, 91055680, 145689088, 182111360, 364222720, 728445440]

約数ペア:

[(1, 728445440), (2, 364222720), (4, 182111360), (5, 145689088), (8, 91055680), (10, 72844544), (16, 45527840), (20, 36422272), (31, 23498240), (32, 22763920), (40, 18211136), (62, 11749120), (64, 11381960), (67, 10872320), (80, 9105568), (124, 5874560), (128, 5690980), (134, 5436160), (137, 5317120), (155, 4699648), (160, 4552784), (248, 2937280), (256, 2845490), (268, 2718080), (274, 2658560), (310, 2349824), (320, 2276392), (335, 2174464), (496, 1468640), (512, 1422745), (536, 1359040), (548, 1329280), (620, 1174912), (640, 1138196), (670, 1087232), (685, 1063424), (992, 734320), (1072, 679520), (1096, 664640), (1240, 587456), (1280, 569098), (1340, 543616), (1370, 531712), (1984, 367160), (2077, 350720), (2144, 339760), (2192, 332320), (2480, 293728), (2560, 284549), (2680, 271808), (2740, 265856), (3968, 183580), (4154, 175360), (4247, 171520), (4288, 169880), (4384, 166160), (4960, 146864), (5360, 135904), (5480, 132928), (7936, 91790), (8308, 87680), (8494, 85760), (8576, 84940), (8768, 83080), (9179, 79360), (9920, 73432), (10385, 70144), (10720, 67952), (10960, 66464), (15872, 45895), (16616, 43840), (16988, 42880), (17152, 42470), (17536, 41540), (18358, 39680), (19840, 36716), (20770, 35072), (21235, 34304), (21440, 33976), (21920, 33232)]