28006040

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{149}}^1$

素因数の和:324

約数の個数: 64

約数和(自身を含む): 65664000

約数和(自身を除く): 37657960

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 127, 148, 149, 185, 254, 296, 298, 370, 508, 596, 635, 740, 745, 1016, 1192, 1270, 1480, 1490, 2540, 2980, 4699, 5080, 5513, 5960, 9398, 11026, 18796, 18923, 22052, 23495, 27565, 37592, 37846, 44104, 46990, 55130, 75692, 93980, 94615, 110260, 151384, 187960, 189230, 220520, 378460, 700151, 756920, 1400302, 2800604, 3500755, 5601208, 7001510, 14003020, 28006040]

約数ペア:

[(1, 28006040), (2, 14003020), (4, 7001510), (5, 5601208), (8, 3500755), (10, 2800604), (20, 1400302), (37, 756920), (40, 700151), (74, 378460), (127, 220520), (148, 189230), (149, 187960), (185, 151384), (254, 110260), (296, 94615), (298, 93980), (370, 75692), (508, 55130), (596, 46990), (635, 44104), (740, 37846), (745, 37592), (1016, 27565), (1192, 23495), (1270, 22052), (1480, 18923), (1490, 18796), (2540, 11026), (2980, 9398), (4699, 5960), (5080, 5513)]