638567888

素因数分解:

$2^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{1979}}^1$

素因数の和:2104

約数の個数: 80

約数和(自身を含む): 1469191680

約数和(自身を除く): 830623792

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 43, 56, 67, 86, 112, 134, 172, 268, 301, 344, 469, 536, 602, 688, 938, 1072, 1204, 1876, 1979, 2408, 2881, 3752, 3958, 4816, 5762, 7504, 7916, 11524, 13853, 15832, 20167, 23048, 27706, 31664, 40334, 46096, 55412, 80668, 85097, 110824, 132593, 161336, 170194, 221648, 265186, 322672, 340388, 530372, 595679, 680776, 928151, 1060744, 1191358, 1361552, 1856302, 2121488, 2382716, 3712604, 4765432, 5701499, 7425208, 9530864, 11402998, 14850416, 22805996, 39910493, 45611992, 79820986, 91223984, 159641972, 319283944, 638567888]

約数ペア:

[(1, 638567888), (2, 319283944), (4, 159641972), (7, 91223984), (8, 79820986), (14, 45611992), (16, 39910493), (28, 22805996), (43, 14850416), (56, 11402998), (67, 9530864), (86, 7425208), (112, 5701499), (134, 4765432), (172, 3712604), (268, 2382716), (301, 2121488), (344, 1856302), (469, 1361552), (536, 1191358), (602, 1060744), (688, 928151), (938, 680776), (1072, 595679), (1204, 530372), (1876, 340388), (1979, 322672), (2408, 265186), (2881, 221648), (3752, 170194), (3958, 161336), (4816, 132593), (5762, 110824), (7504, 85097), (7916, 80668), (11524, 55412), (13853, 46096), (15832, 40334), (20167, 31664), (23048, 27706)]