289747136

素因数分解:

$2^6\times 7^1\times {\mathrm{646757}}^1$

素因数の和:646776

約数の個数: 28

約数和(自身を含む): 657106128

約数和(自身を除く): 367358992

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 224, 448, 646757, 1293514, 2587028, 4527299, 5174056, 9054598, 10348112, 18109196, 20696224, 36218392, 41392448, 72436784, 144873568, 289747136]

約数ペア:

[(1, 289747136), (2, 144873568), (4, 72436784), (7, 41392448), (8, 36218392), (14, 20696224), (16, 18109196), (28, 10348112), (32, 9054598), (56, 5174056), (64, 4527299), (112, 2587028), (224, 1293514), (448, 646757)]