8490020

素因数分解:

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

素因数の和:213

約数の個数: 96

約数和(自身を含む): 22982400

約数和(自身を除く): 14492380

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 37, 44, 55, 70, 74, 77, 110, 140, 148, 149, 154, 185, 220, 259, 298, 308, 370, 385, 407, 518, 596, 740, 745, 770, 814, 1036, 1043, 1295, 1490, 1540, 1628, 1639, 2035, 2086, 2590, 2849, 2980, 3278, 4070, 4172, 5180, 5215, 5513, 5698, 6556, 8140, 8195, 10430, 11026, 11396, 11473, 14245, 16390, 20860, 22052, 22946, 27565, 28490, 32780, 38591, 45892, 55130, 56980, 57365, 60643, 77182, 110260, 114730, 121286, 154364, 192955, 229460, 242572, 303215, 385910, 424501, 606430, 771820, 849002, 1212860, 1698004, 2122505, 4245010, 8490020]

約数ペア:

[(1, 8490020), (2, 4245010), (4, 2122505), (5, 1698004), (7, 1212860), (10, 849002), (11, 771820), (14, 606430), (20, 424501), (22, 385910), (28, 303215), (35, 242572), (37, 229460), (44, 192955), (55, 154364), (70, 121286), (74, 114730), (77, 110260), (110, 77182), (140, 60643), (148, 57365), (149, 56980), (154, 55130), (185, 45892), (220, 38591), (259, 32780), (298, 28490), (308, 27565), (370, 22946), (385, 22052), (407, 20860), (518, 16390), (596, 14245), (740, 11473), (745, 11396), (770, 11026), (814, 10430), (1036, 8195), (1043, 8140), (1295, 6556), (1490, 5698), (1540, 5513), (1628, 5215), (1639, 5180), (2035, 4172), (2086, 4070), (2590, 3278), (2849, 2980)]