20350988

素因数分解:

$2^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{97}}^1\times {\mathrm{127}}^1$

素因数の和:294

約数の個数: 48

約数和(自身を含む): 42147840

約数和(自身を除く): 21796852

約数列:

[1, 2, 4, 7, 14, 28, 59, 97, 118, 127, 194, 236, 254, 388, 413, 508, 679, 826, 889, 1358, 1652, 1778, 2716, 3556, 5723, 7493, 11446, 12319, 14986, 22892, 24638, 29972, 40061, 49276, 52451, 80122, 86233, 104902, 160244, 172466, 209804, 344932, 726821, 1453642, 2907284, 5087747, 10175494, 20350988]

約数ペア:

[(1, 20350988), (2, 10175494), (4, 5087747), (7, 2907284), (14, 1453642), (28, 726821), (59, 344932), (97, 209804), (118, 172466), (127, 160244), (194, 104902), (236, 86233), (254, 80122), (388, 52451), (413, 49276), (508, 40061), (679, 29972), (826, 24638), (889, 22892), (1358, 14986), (1652, 12319), (1778, 11446), (2716, 7493), (3556, 5723)]