16980040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1$

素因数の和:215

約数の個数: 128

約数和(自身を含む): 49248000

約数和(自身を除く): 32267960

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 37, 40, 44, 55, 56, 70, 74, 77, 88, 110, 140, 148, 149, 154, 185, 220, 259, 280, 296, 298, 308, 370, 385, 407, 440, 518, 596, 616, 740, 745, 770, 814, 1036, 1043, 1192, 1295, 1480, 1490, 1540, 1628, 1639, 2035, 2072, 2086, 2590, 2849, 2980, 3080, 3256, 3278, 4070, 4172, 5180, 5215, 5513, 5698, 5960, 6556, 8140, 8195, 8344, 10360, 10430, 11026, 11396, 11473, 13112, 14245, 16280, 16390, 20860, 22052, 22792, 22946, 27565, 28490, 32780, 38591, 41720, 44104, 45892, 55130, 56980, 57365, 60643, 65560, 77182, 91784, 110260, 113960, 114730, 121286, 154364, 192955, 220520, 229460, 242572, 303215, 308728, 385910, 424501, 458920, 485144, 606430, 771820, 849002, 1212860, 1543640, 1698004, 2122505, 2425720, 3396008, 4245010, 8490020, 16980040]

約数ペア:

[(1, 16980040), (2, 8490020), (4, 4245010), (5, 3396008), (7, 2425720), (8, 2122505), (10, 1698004), (11, 1543640), (14, 1212860), (20, 849002), (22, 771820), (28, 606430), (35, 485144), (37, 458920), (40, 424501), (44, 385910), (55, 308728), (56, 303215), (70, 242572), (74, 229460), (77, 220520), (88, 192955), (110, 154364), (140, 121286), (148, 114730), (149, 113960), (154, 110260), (185, 91784), (220, 77182), (259, 65560), (280, 60643), (296, 57365), (298, 56980), (308, 55130), (370, 45892), (385, 44104), (407, 41720), (440, 38591), (518, 32780), (596, 28490), (616, 27565), (740, 22946), (745, 22792), (770, 22052), (814, 20860), (1036, 16390), (1043, 16280), (1192, 14245), (1295, 13112), (1480, 11473), (1490, 11396), (1540, 11026), (1628, 10430), (1639, 10360), (2035, 8344), (2072, 8195), (2086, 8140), (2590, 6556), (2849, 5960), (2980, 5698), (3080, 5513), (3256, 5215), (3278, 5180), (4070, 4172)]