2425720

素因数分解:

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

素因数の和:208

約数の個数: 64

約数和(自身を含む): 6156000

約数和(自身を除く): 3730280

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 37, 40, 44, 55, 74, 88, 110, 148, 149, 185, 220, 296, 298, 370, 407, 440, 596, 740, 745, 814, 1192, 1480, 1490, 1628, 1639, 2035, 2980, 3256, 3278, 4070, 5513, 5960, 6556, 8140, 8195, 11026, 13112, 16280, 16390, 22052, 27565, 32780, 44104, 55130, 60643, 65560, 110260, 121286, 220520, 242572, 303215, 485144, 606430, 1212860, 2425720]

約数ペア:

[(1, 2425720), (2, 1212860), (4, 606430), (5, 485144), (8, 303215), (10, 242572), (11, 220520), (20, 121286), (22, 110260), (37, 65560), (40, 60643), (44, 55130), (55, 44104), (74, 32780), (88, 27565), (110, 22052), (148, 16390), (149, 16280), (185, 13112), (220, 11026), (296, 8195), (298, 8140), (370, 6556), (407, 5960), (440, 5513), (596, 4070), (740, 3278), (745, 3256), (814, 2980), (1192, 2035), (1480, 1639), (1490, 1628)]