251406784

素因数分解:

$2^6\times {\mathrm{19}}^1\times {\mathrm{206749}}^1$

素因数の和:206780

約数の個数: 28

約数和(自身を含む): 525145000

約数和(自身を除く): 273738216

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 152, 304, 608, 1216, 206749, 413498, 826996, 1653992, 3307984, 3928231, 6615968, 7856462, 13231936, 15712924, 31425848, 62851696, 125703392, 251406784]

約数ペア:

[(1, 251406784), (2, 125703392), (4, 62851696), (8, 31425848), (16, 15712924), (19, 13231936), (32, 7856462), (38, 6615968), (64, 3928231), (76, 3307984), (152, 1653992), (304, 826996), (608, 413498), (1216, 206749)]