311943280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{3137}}^1$

素因数の和:3274

約数の個数: 80

約数和(自身を含む): 798457824

約数和(自身を除く): 486514544

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 113, 176, 220, 226, 440, 452, 565, 880, 904, 1130, 1243, 1808, 2260, 2486, 3137, 4520, 4972, 6215, 6274, 9040, 9944, 12430, 12548, 15685, 19888, 24860, 25096, 31370, 34507, 49720, 50192, 62740, 69014, 99440, 125480, 138028, 172535, 250960, 276056, 345070, 354481, 552112, 690140, 708962, 1380280, 1417924, 1772405, 2760560, 2835848, 3544810, 3899291, 5671696, 7089620, 7798582, 14179240, 15597164, 19496455, 28358480, 31194328, 38992910, 62388656, 77985820, 155971640, 311943280]

約数ペア:

[(1, 311943280), (2, 155971640), (4, 77985820), (5, 62388656), (8, 38992910), (10, 31194328), (11, 28358480), (16, 19496455), (20, 15597164), (22, 14179240), (40, 7798582), (44, 7089620), (55, 5671696), (80, 3899291), (88, 3544810), (110, 2835848), (113, 2760560), (176, 1772405), (220, 1417924), (226, 1380280), (440, 708962), (452, 690140), (565, 552112), (880, 354481), (904, 345070), (1130, 276056), (1243, 250960), (1808, 172535), (2260, 138028), (2486, 125480), (3137, 99440), (4520, 69014), (4972, 62740), (6215, 50192), (6274, 49720), (9040, 34507), (9944, 31370), (12430, 25096), (12548, 24860), (15685, 19888)]