238780720

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{1693}}^1$

素因数の和:1790

約数の個数: 80

約数和(自身を含む): 582275232

約数和(自身を除く): 343494512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 43, 80, 82, 86, 164, 172, 205, 215, 328, 344, 410, 430, 656, 688, 820, 860, 1640, 1693, 1720, 1763, 3280, 3386, 3440, 3526, 6772, 7052, 8465, 8815, 13544, 14104, 16930, 17630, 27088, 28208, 33860, 35260, 67720, 69413, 70520, 72799, 135440, 138826, 141040, 145598, 277652, 291196, 347065, 363995, 555304, 582392, 694130, 727990, 1110608, 1164784, 1388260, 1455980, 2776520, 2911960, 2984759, 5553040, 5823920, 5969518, 11939036, 14923795, 23878072, 29847590, 47756144, 59695180, 119390360, 238780720]

約数ペア:

[(1, 238780720), (2, 119390360), (4, 59695180), (5, 47756144), (8, 29847590), (10, 23878072), (16, 14923795), (20, 11939036), (40, 5969518), (41, 5823920), (43, 5553040), (80, 2984759), (82, 2911960), (86, 2776520), (164, 1455980), (172, 1388260), (205, 1164784), (215, 1110608), (328, 727990), (344, 694130), (410, 582392), (430, 555304), (656, 363995), (688, 347065), (820, 291196), (860, 277652), (1640, 145598), (1693, 141040), (1720, 138826), (1763, 135440), (3280, 72799), (3386, 70520), (3440, 69413), (3526, 67720), (6772, 35260), (7052, 33860), (8465, 28208), (8815, 27088), (13544, 17630), (14104, 16930)]