20437144

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{419}}^1$

素因数の和:512

約数の個数: 64

約数和(自身を含む): 47980800

約数和(自身を除く): 27543656

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 67, 91, 104, 134, 182, 268, 364, 419, 469, 536, 728, 838, 871, 938, 1676, 1742, 1876, 2933, 3352, 3484, 3752, 5447, 5866, 6097, 6968, 10894, 11732, 12194, 21788, 23464, 24388, 28073, 38129, 43576, 48776, 56146, 76258, 112292, 152516, 196511, 224584, 305032, 364949, 393022, 729898, 786044, 1459796, 1572088, 2554643, 2919592, 5109286, 10218572, 20437144]

約数ペア:

[(1, 20437144), (2, 10218572), (4, 5109286), (7, 2919592), (8, 2554643), (13, 1572088), (14, 1459796), (26, 786044), (28, 729898), (52, 393022), (56, 364949), (67, 305032), (91, 224584), (104, 196511), (134, 152516), (182, 112292), (268, 76258), (364, 56146), (419, 48776), (469, 43576), (536, 38129), (728, 28073), (838, 24388), (871, 23464), (938, 21788), (1676, 12194), (1742, 11732), (1876, 10894), (2933, 6968), (3352, 6097), (3484, 5866), (3752, 5447)]