211330720

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{311}}^1$

素因数の和:494

約数の個数: 96

約数和(自身を含む): 520805376

約数和(自身を除く): 309474656

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 137, 155, 160, 248, 274, 310, 311, 496, 548, 620, 622, 685, 992, 1096, 1240, 1244, 1370, 1555, 2192, 2480, 2488, 2740, 3110, 4247, 4384, 4960, 4976, 5480, 6220, 8494, 9641, 9952, 10960, 12440, 16988, 19282, 21235, 21920, 24880, 33976, 38564, 42470, 42607, 48205, 49760, 67952, 77128, 84940, 85214, 96410, 135904, 154256, 169880, 170428, 192820, 213035, 308512, 339760, 340856, 385640, 426070, 679520, 681712, 771280, 852140, 1320817, 1363424, 1542560, 1704280, 2641634, 3408560, 5283268, 6604085, 6817120, 10566536, 13208170, 21133072, 26416340, 42266144, 52832680, 105665360, 211330720]

約数ペア:

[(1, 211330720), (2, 105665360), (4, 52832680), (5, 42266144), (8, 26416340), (10, 21133072), (16, 13208170), (20, 10566536), (31, 6817120), (32, 6604085), (40, 5283268), (62, 3408560), (80, 2641634), (124, 1704280), (137, 1542560), (155, 1363424), (160, 1320817), (248, 852140), (274, 771280), (310, 681712), (311, 679520), (496, 426070), (548, 385640), (620, 340856), (622, 339760), (685, 308512), (992, 213035), (1096, 192820), (1240, 170428), (1244, 169880), (1370, 154256), (1555, 135904), (2192, 96410), (2480, 85214), (2488, 84940), (2740, 77128), (3110, 67952), (4247, 49760), (4384, 48205), (4960, 42607), (4976, 42470), (5480, 38564), (6220, 33976), (8494, 24880), (9641, 21920), (9952, 21235), (10960, 19282), (12440, 16988)]