20708896

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{743}}^1$

素因数の和:833

約数の個数: 48

約数和(自身を含む): 44622144

約数和(自身を除く): 23913248

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 67, 104, 134, 208, 268, 416, 536, 743, 871, 1072, 1486, 1742, 2144, 2972, 3484, 5944, 6968, 9659, 11888, 13936, 19318, 23776, 27872, 38636, 49781, 77272, 99562, 154544, 199124, 309088, 398248, 647153, 796496, 1294306, 1592992, 2588612, 5177224, 10354448, 20708896]

約数ペア:

[(1, 20708896), (2, 10354448), (4, 5177224), (8, 2588612), (13, 1592992), (16, 1294306), (26, 796496), (32, 647153), (52, 398248), (67, 309088), (104, 199124), (134, 154544), (208, 99562), (268, 77272), (416, 49781), (536, 38636), (743, 27872), (871, 23776), (1072, 19318), (1486, 13936), (1742, 11888), (2144, 9659), (2972, 6968), (3484, 5944)]