640660320

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{148301}}^1$

素因数の和:148325

約数の個数: 96

約数和(自身を含む): 2242326240

約数和(自身を除く): 1601665920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 72, 80, 90, 96, 108, 120, 135, 144, 160, 180, 216, 240, 270, 288, 360, 432, 480, 540, 720, 864, 1080, 1440, 2160, 4320, 148301, 296602, 444903, 593204, 741505, 889806, 1186408, 1334709, 1483010, 1779612, 2224515, 2372816, 2669418, 2966020, 3559224, 4004127, 4449030, 4745632, 5338836, 5932040, 6673545, 7118448, 8008254, 8898060, 10677672, 11864080, 13347090, 14236896, 16016508, 17796120, 20020635, 21355344, 23728160, 26694180, 32033016, 35592240, 40041270, 42710688, 53388360, 64066032, 71184480, 80082540, 106776720, 128132064, 160165080, 213553440, 320330160, 640660320]

約数ペア:

[(1, 640660320), (2, 320330160), (3, 213553440), (4, 160165080), (5, 128132064), (6, 106776720), (8, 80082540), (9, 71184480), (10, 64066032), (12, 53388360), (15, 42710688), (16, 40041270), (18, 35592240), (20, 32033016), (24, 26694180), (27, 23728160), (30, 21355344), (32, 20020635), (36, 17796120), (40, 16016508), (45, 14236896), (48, 13347090), (54, 11864080), (60, 10677672), (72, 8898060), (80, 8008254), (90, 7118448), (96, 6673545), (108, 5932040), (120, 5338836), (135, 4745632), (144, 4449030), (160, 4004127), (180, 3559224), (216, 2966020), (240, 2669418), (270, 2372816), (288, 2224515), (360, 1779612), (432, 1483010), (480, 1334709), (540, 1186408), (720, 889806), (864, 741505), (1080, 593204), (1440, 444903), (2160, 296602), (4320, 148301)]