20687904

素因数分解:

$2^5\times 3^2\times {\mathrm{29}}^1\times {\mathrm{2477}}^1$

素因数の和:2522

約数の個数: 72

約数和(自身を含む): 60884460

約数和(自身を除く): 40196556

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 29, 32, 36, 48, 58, 72, 87, 96, 116, 144, 174, 232, 261, 288, 348, 464, 522, 696, 928, 1044, 1392, 2088, 2477, 2784, 4176, 4954, 7431, 8352, 9908, 14862, 19816, 22293, 29724, 39632, 44586, 59448, 71833, 79264, 89172, 118896, 143666, 178344, 215499, 237792, 287332, 356688, 430998, 574664, 646497, 713376, 861996, 1149328, 1292994, 1723992, 2298656, 2585988, 3447984, 5171976, 6895968, 10343952, 20687904]

約数ペア:

[(1, 20687904), (2, 10343952), (3, 6895968), (4, 5171976), (6, 3447984), (8, 2585988), (9, 2298656), (12, 1723992), (16, 1292994), (18, 1149328), (24, 861996), (29, 713376), (32, 646497), (36, 574664), (48, 430998), (58, 356688), (72, 287332), (87, 237792), (96, 215499), (116, 178344), (144, 143666), (174, 118896), (232, 89172), (261, 79264), (288, 71833), (348, 59448), (464, 44586), (522, 39632), (696, 29724), (928, 22293), (1044, 19816), (1392, 14862), (2088, 9908), (2477, 8352), (2784, 7431), (4176, 4954)]