280040306

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{19477}}^1$

素因数の和:19578

約数の個数: 32

約数和(自身を含む): 523568640

約数和(自身を除く): 243528334

約数列:

[1, 2, 7, 13, 14, 26, 79, 91, 158, 182, 553, 1027, 1106, 2054, 7189, 14378, 19477, 38954, 136339, 253201, 272678, 506402, 1538683, 1772407, 3077366, 3544814, 10770781, 20002879, 21541562, 40005758, 140020153, 280040306]

約数ペア:

[(1, 280040306), (2, 140020153), (7, 40005758), (13, 21541562), (14, 20002879), (26, 10770781), (79, 3544814), (91, 3077366), (158, 1772407), (182, 1538683), (553, 506402), (1027, 272678), (1106, 253201), (2054, 136339), (7189, 38954), (14378, 19477)]