313076720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{359}}^1\times {\mathrm{991}}^1$

素因数の和:1374

約数の個数: 80

約数和(自身を含む): 797091840

約数和(自身を除く): 484015120

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 359, 440, 718, 880, 991, 1436, 1795, 1982, 2872, 3590, 3949, 3964, 4955, 5744, 7180, 7898, 7928, 9910, 10901, 14360, 15796, 15856, 19745, 19820, 21802, 28720, 31592, 39490, 39640, 43604, 54505, 63184, 78980, 79280, 87208, 109010, 157960, 174416, 218020, 315920, 355769, 436040, 711538, 872080, 1423076, 1778845, 2846152, 3557690, 3913459, 5692304, 7115380, 7826918, 14230760, 15653836, 19567295, 28461520, 31307672, 39134590, 62615344, 78269180, 156538360, 313076720]

約数ペア:

[(1, 313076720), (2, 156538360), (4, 78269180), (5, 62615344), (8, 39134590), (10, 31307672), (11, 28461520), (16, 19567295), (20, 15653836), (22, 14230760), (40, 7826918), (44, 7115380), (55, 5692304), (80, 3913459), (88, 3557690), (110, 2846152), (176, 1778845), (220, 1423076), (359, 872080), (440, 711538), (718, 436040), (880, 355769), (991, 315920), (1436, 218020), (1795, 174416), (1982, 157960), (2872, 109010), (3590, 87208), (3949, 79280), (3964, 78980), (4955, 63184), (5744, 54505), (7180, 43604), (7898, 39640), (7928, 39490), (9910, 31592), (10901, 28720), (14360, 21802), (15796, 19820), (15856, 19745)]