248840680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{367}}^1$

素因数の和:479

約数の個数: 128

約数和(自身を含む): 648622080

約数和(自身を除く): 399781400

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 40, 44, 46, 55, 67, 88, 92, 110, 115, 134, 184, 220, 230, 253, 268, 335, 367, 440, 460, 506, 536, 670, 734, 737, 920, 1012, 1265, 1340, 1468, 1474, 1541, 1835, 2024, 2530, 2680, 2936, 2948, 3082, 3670, 3685, 4037, 5060, 5896, 6164, 7340, 7370, 7705, 8074, 8441, 10120, 12328, 14680, 14740, 15410, 16148, 16882, 16951, 20185, 24589, 29480, 30820, 32296, 33764, 33902, 40370, 42205, 49178, 61640, 67528, 67804, 80740, 84410, 84755, 92851, 98356, 122945, 135608, 161480, 168820, 169510, 185702, 196712, 245890, 270479, 337640, 339020, 371404, 464255, 491780, 540958, 565547, 678040, 742808, 928510, 983560, 1081916, 1131094, 1352395, 1857020, 2163832, 2262188, 2704790, 2827735, 3714040, 4524376, 5409580, 5655470, 6221017, 10819160, 11310940, 12442034, 22621880, 24884068, 31105085, 49768136, 62210170, 124420340, 248840680]

約数ペア:

[(1, 248840680), (2, 124420340), (4, 62210170), (5, 49768136), (8, 31105085), (10, 24884068), (11, 22621880), (20, 12442034), (22, 11310940), (23, 10819160), (40, 6221017), (44, 5655470), (46, 5409580), (55, 4524376), (67, 3714040), (88, 2827735), (92, 2704790), (110, 2262188), (115, 2163832), (134, 1857020), (184, 1352395), (220, 1131094), (230, 1081916), (253, 983560), (268, 928510), (335, 742808), (367, 678040), (440, 565547), (460, 540958), (506, 491780), (536, 464255), (670, 371404), (734, 339020), (737, 337640), (920, 270479), (1012, 245890), (1265, 196712), (1340, 185702), (1468, 169510), (1474, 168820), (1541, 161480), (1835, 135608), (2024, 122945), (2530, 98356), (2680, 92851), (2936, 84755), (2948, 84410), (3082, 80740), (3670, 67804), (3685, 67528), (4037, 61640), (5060, 49178), (5896, 42205), (6164, 40370), (7340, 33902), (7370, 33764), (7705, 32296), (8074, 30820), (8441, 29480), (10120, 24589), (12328, 20185), (14680, 16951), (14740, 16882), (15410, 16148)]