15968720

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1$

素因数の和:228

約数の個数: 80

約数和(自身を含む): 39426048

約数和(自身を除く): 23457328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 47, 62, 80, 94, 124, 137, 155, 188, 235, 248, 274, 310, 376, 470, 496, 548, 620, 685, 752, 940, 1096, 1240, 1370, 1457, 1880, 2192, 2480, 2740, 2914, 3760, 4247, 5480, 5828, 6439, 7285, 8494, 10960, 11656, 12878, 14570, 16988, 21235, 23312, 25756, 29140, 32195, 33976, 42470, 51512, 58280, 64390, 67952, 84940, 103024, 116560, 128780, 169880, 199609, 257560, 339760, 399218, 515120, 798436, 998045, 1596872, 1996090, 3193744, 3992180, 7984360, 15968720]

約数ペア:

[(1, 15968720), (2, 7984360), (4, 3992180), (5, 3193744), (8, 1996090), (10, 1596872), (16, 998045), (20, 798436), (31, 515120), (40, 399218), (47, 339760), (62, 257560), (80, 199609), (94, 169880), (124, 128780), (137, 116560), (155, 103024), (188, 84940), (235, 67952), (248, 64390), (274, 58280), (310, 51512), (376, 42470), (470, 33976), (496, 32195), (548, 29140), (620, 25756), (685, 23312), (752, 21235), (940, 16988), (1096, 14570), (1240, 12878), (1370, 11656), (1457, 10960), (1880, 8494), (2192, 7285), (2480, 6439), (2740, 5828), (2914, 5480), (3760, 4247)]