256818632

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{147937}}^1$

素因数の和:147981

約数の個数: 32

約数和(自身を含む): 568081920

約数和(自身を除く): 311263288

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 124, 217, 248, 434, 868, 1736, 147937, 295874, 591748, 1035559, 1183496, 2071118, 4142236, 4586047, 8284472, 9172094, 18344188, 32102329, 36688376, 64204658, 128409316, 256818632]

約数ペア:

[(1, 256818632), (2, 128409316), (4, 64204658), (7, 36688376), (8, 32102329), (14, 18344188), (28, 9172094), (31, 8284472), (56, 4586047), (62, 4142236), (124, 2071118), (217, 1183496), (248, 1035559), (434, 591748), (868, 295874), (1736, 147937)]