257664932

素因数分解:

$2^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{42407}}^1$

素因数の和:42456

約数の個数: 36

約数和(自身を含む): 541465344

約数和(自身を除く): 283800412

約数列:

[1, 2, 4, 7, 14, 28, 31, 49, 62, 98, 124, 196, 217, 434, 868, 1519, 3038, 6076, 42407, 84814, 169628, 296849, 593698, 1187396, 1314617, 2077943, 2629234, 4155886, 5258468, 8311772, 9202319, 18404638, 36809276, 64416233, 128832466, 257664932]

約数ペア:

[(1, 257664932), (2, 128832466), (4, 64416233), (7, 36809276), (14, 18404638), (28, 9202319), (31, 8311772), (49, 5258468), (62, 4155886), (98, 2629234), (124, 2077943), (196, 1314617), (217, 1187396), (434, 593698), (868, 296849), (1519, 169628), (3038, 84814), (6076, 42407)]